*,:before,:after{box-sizing:border-box}:root{--board-frame:#4a3728;--piece-outline:#1a1a1a;--piece-dark-mix:45%;--livery:#49d0fd;--petal:#fff;--flower-spin:90;--panel-border:color-mix(in srgb, currentColor 25%, transparent);--panel-bg:color-mix(in srgb, currentColor 5%, transparent);--hover-bg:color-mix(in srgb, currentColor 3%, transparent);--invalid:#c62828;--app-bg:#fff;--app-fg:#1a1a1a;--checkbox-accent:currentColor;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--board-zoom:1;--men-bar-width:1.7rem;--men-bar-gap:.4rem;--men-bar-number:calc(1.3 * .9rem);--men-bar-spacing:.6rem;--men-bars:0;--two-up-gap:1em;font-family:system-ui,sans-serif}:root[data-theme=dark]{--app-bg:#17181b;--app-fg:var(--dark-theme-fg,#bababa);--checkbox-accent:color-mix(in srgb, var(--app-fg) 50%, var(--app-bg));--panel-bg:color-mix(in srgb, currentColor 10%, transparent);--hover-bg:color-mix(in srgb, currentColor 5%, transparent);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}body{background:var(--app-bg);color:var(--app-fg);margin:0}.app{--player-names:calc(1.6rem + var(--top-row-extra));--top-row-scale:1.2;--top-row-extra:calc((var(--top-row-scale) - 1) * (1.32 + .5) * .95rem);--bottom-row-extra:calc((var(--top-row-scale) - 1) * 1.32 * .95rem);--page-bottom:0rem;--page-reserve:calc(5rem + var(--page-bottom));--board-reserve:calc(var(--page-reserve) + var(--player-names));--board-cap:calc((100dvh - var(--board-reserve)) * var(--board-zoom));--panel-cap:calc((100dvh - var(--page-reserve)) * var(--board-zoom));--board-max:min(100%, var(--board-cap));--page-bars:calc(var(--men-bars,0) * (var(--men-bar-width) + var(--men-bar-gap)));--panel-room:max(27rem, 100em);max-width:calc(var(--board-cap) + var(--page-bars) + 1rem + var(--panel-room) + 1.5rem);padding:1.5rem .75rem var(--page-bottom);margin:0 auto}.app-header{align-items:center;gap:1rem;margin-bottom:1rem;display:flex}.header-game{min-width:0;color:var(--app-fg);align-self:baseline;align-items:baseline;margin:0 0 0 1rem;font-size:1.35rem;display:flex}.header-game-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.header-game-unsaved{color:var(--livery);cursor:help;flex:none;margin-left:.15em;font-size:1.3em}.app-header h1,.header-link{white-space:nowrap;flex:none}.app-header h1{align-self:baseline}.header-link{color:inherit;align-items:center;gap:.4rem;font-size:.9rem;text-decoration:none;display:inline-flex}.header-link:hover{text-decoration:underline}.sponsor-link{margin-left:auto;margin-right:2em}.source-link{margin-right:2em}.app-header .title-piece{fill:currentColor;stroke:none;width:1.46667em;height:1.46667em;margin:-.4em calc(.35rem - .24em) -.353em -.307em;display:inline-block}.app-header h1{color:var(--livery);margin:0 0 0 calc(2rem - .2em);font-size:1.5rem}.app-playing{--player-names:calc(4rem + var(--top-row-extra) + var(--bottom-row-extra))}.app-near-row{--player-names:calc(1.6rem + var(--top-row-extra) + 1.32 * .95rem + .5rem - var(--near-row-lift));--near-row-lift:15px}.board-and-players>.player-name.board-near{margin-top:calc(.25rem - var(--near-row-lift));z-index:1;position:relative}.app-body{flex-wrap:wrap;align-items:stretch;gap:1rem;display:flex}.board-pane{--men-bars-extent:calc(var(--men-bars) * (var(--men-bar-width) + var(--men-bar-gap)));flex:0 1 calc(var(--board-cap) + var(--men-bars-extent));flex-direction:column;min-width:0;display:flex}.side-column{flex:1 1 calc(27rem * var(--set-scale));min-width:calc(27rem * var(--set-scale));max-width:var(--panel-room);gap:calc(.9rem * var(--set-scale));flex-direction:column;display:flex;container-type:inline-size}.board-holder{width:100%;max-width:var(--board-max);position:relative;container-type:inline-size}.board{width:100%;height:auto;display:block}.heatmap-square{transition:fill var(--fade-time,0s) linear, fill-opacity var(--fade-time,0s) linear}.mark-coming,.mark-going{transition:opacity var(--fade-time,0s) linear}.mark-going{opacity:0;pointer-events:none}@starting-style{.mark-coming{opacity:0}}@media (prefers-reduced-motion:reduce){:root:not(.motion-forced) .heatmap-square,:root:not(.motion-forced) .mark-coming,:root:not(.motion-forced) .mark-going{transition:none}}.board{touch-action:none}.board-dragging{cursor:grabbing}.drag-target{fill:currentColor;fill-opacity:.55;stroke:var(--app-bg);stroke-width:2px;stroke-opacity:.6}.drag-layer{pointer-events:none}.board-controls{flex-wrap:wrap;align-items:center;gap:.75em;display:flex}.fen-field{width:100%}.fen-row>.field-label{font-size:calc(.9rem * var(--set-scale));flex:none}.fen-row>.field-label label:after{content:":"}.fen-row>.fen-input{min-width:calc(8rem * var(--set-scale));flex:1 1 0}.reset-button:has(>svg){align-items:center;gap:.4em;display:inline-flex}.controls-end,.stash-actions{margin-left:auto}.move-nav{flex-direction:column;gap:.5em;padding:.5em 0 0;display:flex;container:lab-controls/inline-size}.step-buttons{justify-content:flex-start;column-gap:calc(2rem * var(--set-scale));flex:1;display:flex}.step-buttons>.step-button:nth-child(2){margin-right:calc(2rem * var(--set-scale))}.step-buttons>.info-button{margin-left:calc(.4em - 2rem * var(--set-scale));align-self:center}.board-controls .reset-button{white-space:nowrap}.match-view{margin-top:calc(.9rem * var(--set-scale))}.play-button{justify-content:center;align-items:center;gap:.45em;min-width:12em;display:inline-flex}.play-row{margin-top:.55em;margin-bottom:.4em;display:flex}.play-row>.play-button{white-space:nowrap;min-width:0;max-width:100%;overflow:hidden}.play-timing{container:play-timing/inline-size}.play-timing-grid{row-gap:calc(.5rem * var(--set-scale));grid-template-columns:minmax(0,1fr);display:grid}.play-timing-grid>.number-field{justify-self:end;margin-bottom:0}.play-timing-grid .field-suffix{min-width:4.3em}@container play-timing (width>=36em){.play-timing-grid{column-gap:calc(1.5rem * var(--set-scale));grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.play-timing-grid>.number-field{min-width:0}.play-timing-grid>.number-field>.field-label{flex:auto;justify-content:flex-end;min-width:0}.play-timing-grid>.number-field>.field-label>label{white-space:normal;text-align:right}}.stash-actions{gap:.75em;display:flex}.step-button{min-width:0;padding:calc(.35rem * var(--set-scale)) calc(.55rem * var(--set-scale));font-size:calc(1rem * var(--set-scale));flex:35 1 0;justify-content:center;align-items:center;display:inline-flex}.step-button.step-button-end{flex:15 1 0}.board-controls .toggle-field{margin-bottom:0}.game-library,.stashed-games{align-items:center;gap:calc(.5rem * var(--set-scale));flex-wrap:wrap;min-width:0;display:flex}.game-library>label,.stashed-games>label{font-size:calc(.9rem * var(--set-scale));flex:none}.game-library>label:after,.stashed-games>label:after{content:":"}.game-list-error{flex:1 0 100%;margin:0}.board-controls>.game-library{flex:auto}.game-library>.game-select{flex:0 1 calc(26rem * var(--set-scale))}.stash-pick{flex-wrap:wrap;flex:0 auto;align-items:center;gap:.75em;min-width:0;margin-left:auto;display:flex}.stashed-games{flex:1 1 calc(15.5rem * var(--set-scale));flex-wrap:nowrap;max-width:max-content}.stashed-games>.game-select{min-width:calc(8rem * var(--set-scale));flex:0 auto}.stash-pick>.reset-button{flex:none}.game-select{min-width:0;padding:calc(.4rem * var(--set-scale)) calc(.5rem * var(--set-scale));font-size:calc(.9rem * var(--set-scale));color:var(--app-fg);background:var(--app-bg);border:1px solid var(--panel-border);border-radius:6px}.choice-select{width:auto;min-width:10em}.choice-select-capped{max-width:calc(22rem * var(--set-scale));text-overflow:ellipsis}.challenge-dialog .board-controls>.choice-select{flex:6em;min-width:0}.game-select option{color:var(--app-fg);background:var(--app-bg)}.game-select:disabled{opacity:.5;cursor:not-allowed}.moves-field{align-items:center;gap:calc(.5rem * var(--set-scale));flex:1;display:flex}.lines-row{column-gap:2em;row-gap:calc(.5rem * var(--set-scale));flex-wrap:wrap}.lines-row>.moves-field{flex:none}.lines-row>.number-field{flex:0 auto;min-width:0;margin-bottom:0}.lines-row .choice-select{min-width:6em}.lines-row>.line-field{flex:1 1 calc(8rem * var(--set-scale));min-width:0;margin-bottom:0}.lines-keep-row{column-gap:1em;row-gap:calc(.5rem * var(--set-scale));flex-wrap:wrap}.lines-keep-row>.toggle-field{margin-bottom:0}.lines-keep-row>.lines-remove{flex-wrap:wrap;justify-content:flex-end;gap:1em;margin-left:auto}.line-field>.line-select{flex:1 1 0;width:0;min-width:8em}.line-select,.line-select option{font-family:Chess Figures,system-ui,sans-serif}.moves-field>label{font-size:calc(.9rem * var(--set-scale));flex:none}.field-label{align-items:center;gap:.4em;min-width:0;display:inline-flex}.info-button{width:calc(1.15rem * var(--set-scale));height:calc(1.15rem * var(--set-scale));font:italic 700 calc(.75rem * var(--set-scale))/1 Georgia, "Times New Roman", serif;color:color-mix(in srgb, currentColor 70%, transparent);border:1.5px solid color-mix(in srgb, currentColor 45%, transparent);cursor:pointer;background:0 0;border-radius:50%;flex:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.info-button:hover,.info-button:focus-visible,.info-button-open{color:var(--app-fg);border-color:currentColor}.info-box{width:min(25rem * var(--set-scale), calc(100vw - 16px));padding:calc(.75rem * var(--set-scale)) calc(3rem * var(--set-scale)) calc(.8rem * var(--set-scale)) calc(.9rem * var(--set-scale));font-size:calc(.85rem * var(--set-scale));text-align:left;white-space:normal;color:var(--app-fg);background:var(--app-bg);border:1px solid var(--panel-border);border-radius:8px;margin:0;font-weight:400;line-height:1.5;position:fixed;inset:auto;overflow-y:auto;box-shadow:0 8px 20px #0000004d}.info-close{top:calc(.35rem * var(--set-scale));right:calc(.35rem * var(--set-scale));width:2.25rem;height:2.25rem;color:var(--app-fg);background:color-mix(in srgb, currentColor 8%, transparent);border:1px solid var(--panel-border);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:0;display:flex;position:absolute}.info-close:hover,.info-close:focus-visible{background:color-mix(in srgb, currentColor 18%, transparent)}.info-close svg{width:calc(1.25rem * var(--set-scale));height:calc(1.25rem * var(--set-scale));fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round}.info-text{min-height:calc(1.6rem * var(--set-scale))}.promotion-chooser{--choice:3.2rem;color:var(--app-fg);background:var(--app-bg);border:1px solid var(--panel-border);border-radius:8px;margin:0;padding:.35rem;position:fixed;inset:auto;box-shadow:0 8px 20px #0000004d}.promotion-chooser:popover-open{align-items:center;gap:.35rem;display:flex}.promotion-choice{width:var(--choice);height:var(--choice);border:1px solid var(--panel-border);cursor:pointer;background:#dcdcdc;border-radius:6px;justify-content:center;align-items:center;padding:0;display:flex}.promotion-choice:hover,.promotion-choice:focus-visible{outline:2px solid var(--livery);outline-offset:1px;background:#f0f0f0}.promotion-choice .piece{width:calc(var(--choice) * .72 * 64 / 48);height:calc(var(--choice) * .72 * 64 / 48);flex:none}.promotion-white .piece{fill:#fff;stroke:#222}.promotion-black .piece{fill:#111;stroke:none}.stripe-table thead .field-label{align-items:flex-start;gap:calc(.2rem * var(--set-scale));flex-direction:column}.stripe-table tbody th .field-label{white-space:normal;display:inline}.stripe-table tbody th .info-button{vertical-align:-.15em;margin-left:.35em;display:inline-flex}.slider-to .info-button{vertical-align:-.15em;margin-left:.4em;display:inline-flex}.play-row .field-label>label{white-space:nowrap}.key-bindings{align-items:flex-start;gap:calc(.5rem * var(--set-scale));margin:calc(.4rem * var(--set-scale)) 0 calc(.85rem * var(--set-scale));flex-direction:column;display:flex}.key-bindings-title{font-size:calc(.9rem * var(--set-scale))}.key-bindings-grid{column-gap:1em;row-gap:calc(.35rem * var(--set-scale));grid-template-columns:max-content 9em;align-items:center;display:grid}.key-binding{display:contents}.key-binding-name{font-size:calc(.9rem * var(--set-scale))}.key-capture{font-variant-numeric:tabular-nums}.key-capture-listening{outline:2px solid var(--livery);outline-offset:1px}.error-boundary{max-width:40rem;color:var(--app-fg);background:var(--app-bg);border:1px solid var(--panel-border);border-radius:8px;flex-direction:column;align-items:flex-start;gap:.6rem;margin:1rem;padding:1rem 1.2rem;display:flex}.error-boundary-heading{margin:0;font-weight:600}.error-boundary-note{margin:0;font-size:.9rem}.error-boundary-detail{opacity:.75;max-width:100%;margin:0;font-size:.8rem;overflow-x:auto}.info-para{margin:0 0 calc(.6rem * var(--set-scale))}.info-para:last-child{margin-bottom:0}.info-keys{gap:calc(.35rem * var(--set-scale)) calc(.8rem * var(--set-scale));margin:0 0 calc(.6rem * var(--set-scale));grid-template-columns:max-content 1fr;display:grid}.info-keys dt{white-space:nowrap;font-weight:600}.info-keys dd{margin:0}.info-text code{background:color-mix(in srgb, currentColor 10%, transparent);border-radius:3px;padding:0 .15em;font-family:ui-monospace,monospace;font-size:.95em}.fen-input{width:100%;min-width:0;padding:calc(.4rem * var(--set-scale)) calc(.5rem * var(--set-scale));font-family:ui-monospace,monospace;font-size:calc(.9rem * var(--set-scale));color:inherit;border:1px solid var(--panel-border);background:0 0;border-radius:6px}.moves-select{min-width:10em;padding:calc(.4rem * var(--set-scale)) calc(.5rem * var(--set-scale));font-family:Chess Figures,ui-monospace,monospace;font-size:calc(.9rem * var(--set-scale));color:var(--app-fg);background:var(--app-bg);border:1px solid var(--panel-border);border-radius:6px;flex:none}.moves-select option{color:var(--app-fg);background:var(--app-bg);font-family:Chess Figures,ui-monospace,monospace}.fen-input-invalid{border-color:var(--invalid);color:var(--invalid)}.pgn-dialog{width:min(46rem * var(--set-scale), 90vw);padding:calc(1rem * var(--set-scale));color:var(--app-fg);background:var(--app-bg);border:1px solid var(--panel-border);border-radius:10px}.stash-prompt{margin:0 0 calc(.7rem * var(--set-scale));font-size:calc(.9rem * var(--set-scale))}.stash-dialog{width:min(24rem * var(--set-scale), 90vw)}.pgn-dialog::backdrop{background:#00000073}.pgn-dialog-header{justify-content:space-between;align-items:baseline;gap:calc(1rem * var(--set-scale));display:flex}.dialog-close{padding:0 calc(.35rem * var(--set-scale));font-size:calc(1.2rem * var(--set-scale));color:inherit;cursor:pointer;background:0 0;border:none;line-height:1}.pgn-dialog label,.pgn-dialog>label{margin-bottom:calc(.3rem * var(--set-scale));font-size:calc(.9rem * var(--set-scale));display:block}.pgn-text{width:100%;padding:calc(.5rem * var(--set-scale));font-family:ui-monospace,monospace;font-size:calc(.85rem * var(--set-scale));color:inherit;border:1px solid var(--panel-border);resize:vertical;background:0 0;border-radius:6px;line-height:1.45}.pgn-dialog-actions{justify-content:flex-end;gap:calc(.5rem * var(--set-scale));margin-top:calc(.75rem * var(--set-scale));display:flex}.pgn-error{font-size:calc(.8rem * var(--set-scale));color:var(--invalid);margin:0}.fen-error{margin:calc(.35rem * var(--set-scale)) 0 0;font-size:calc(.8rem * var(--set-scale));color:var(--invalid)}.square-light{fill:var(--square-light)}.square-dark{fill:var(--square-dark)}.mark-on-light{fill:var(--mark-on-light)}.mark-on-dark{fill:var(--mark-on-dark)}.grid-line{stroke:var(--grid-line);stroke-width:1px}.attack-outline-ink-me{flood-color:var(--attack-outline-me)}.attack-outline-ink-opponent{flood-color:var(--attack-outline-opponent)}.attack-stripe{fill:none;stroke-linecap:butt}.attack-king{stroke:var(--attack-king)}.attack-queen{stroke:var(--attack-queen)}.attack-knight{stroke:var(--attack-knight)}.attack-stripe.attack-needle{stroke:none}.attack-needle.attack-king{fill:var(--attack-king)}.attack-needle.attack-queen{fill:var(--attack-queen)}.attack-needle.attack-rook{fill:var(--attack-rook)}.attack-needle.attack-bishop{fill:var(--attack-bishop)}.attack-needle.attack-pawn{fill:var(--attack-pawn)}.attack-area{stroke:none}.attack-knight-area{fill:var(--attack-knight)}.attack-bishop{stroke:var(--attack-bishop)}.attack-rook{stroke:var(--attack-rook)}.attack-pawn{stroke:var(--attack-pawn)}.board-frame{fill:none;stroke:var(--board-frame);stroke-width:2px}.coordinate-label{fill:currentColor;text-anchor:middle;dominant-baseline:central;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;font-size:14px}.pin-marker{fill:none;stroke:var(--pin-ring);stroke-width:1.3px;pointer-events:none}.piece{-webkit-user-select:none;user-select:none;-webkit-user-drag:none;pointer-events:none}.attack-side-me,.piece-me{--attack-king:var(--attack-king-me);--attack-queen:var(--attack-queen-me);--attack-rook:var(--attack-rook-me);--attack-bishop:var(--attack-bishop-me);--attack-knight:var(--attack-knight-me);--attack-pawn:var(--attack-pawn-me)}.attack-side-opponent,.piece-opponent{--attack-king:var(--attack-king-opponent);--attack-queen:var(--attack-queen-opponent);--attack-rook:var(--attack-rook-opponent);--attack-bishop:var(--attack-bishop-opponent);--attack-knight:var(--attack-knight-opponent);--attack-pawn:var(--attack-pawn-opponent)}.piece-k{--piece-color:var(--attack-king)}.piece-q{--piece-color:var(--attack-queen)}.piece-r{--piece-color:var(--attack-rook)}.piece-b{--piece-color:var(--attack-bishop)}.piece-n{--piece-color:var(--attack-knight)}.piece-p{--piece-color:var(--attack-pawn)}.piece-white,.piece-black{stroke:var(--piece-outline);stroke-width:1.2px}.piece-white{fill:color-mix(in srgb, var(--piece-color), white var(--piece-lighten))}.piece-black{fill:color-mix(in srgb, var(--piece-color), black var(--piece-darken))}.check-disc-check,.check-disc-checkmate{pointer-events:none}.check-disc-check{fill:none;stroke:var(--check-color);stroke-width:var(--check-ring-width,2.56)}.piece-king{transform-box:fill-box;transform-origin:50%;transition:transform var(--king-fall-time,.4s) ease-in-out;transform:rotate(0)}.piece-fallen{transform:rotate(-90deg)}@starting-style{.piece-fallen{transform:rotate(0)}}@media (prefers-reduced-motion:reduce){:root:not(.motion-forced) .piece-king{transition:none}}.check-disc-checkmate{stroke:none;fill:var(--checkmate-color);fill-opacity:.75}.attack-side-me:not(.attack-outlined){opacity:var(--ray-opacity-me,1)}.attack-side-opponent:not(.attack-outlined){opacity:var(--ray-opacity-opponent,1)}.intensity-row{--between:calc(6rem * var(--set-scale));--apart:calc(.75rem * var(--set-scale));justify-content:center;align-items:stretch;gap:var(--apart);min-height:0;margin-top:calc(var(--panel-pad,1rem * var(--set-scale)) - var(--panel-pad-top,1rem * var(--set-scale)));flex-wrap:wrap;flex:1;display:flex}.intensity-chooser{--handle:calc(2.55rem * var(--set-scale));--handle-clip:calc(1rem * var(--set-scale));flex-direction:column;flex:1;align-items:center;min-width:0;min-height:0;max-height:100%;display:flex}.intensity-frame>.intensity-label{justify-content:center;align-items:center;gap:calc(.45rem * var(--set-scale));text-align:center;left:0;right:0;bottom:calc(50% + min(100cqw, 100cqh - 3.9rem * var(--set-scale)) / 2 + 2.4rem * var(--set-scale));font-size:1.05em;display:flex;position:absolute}.intensity-label input[type=checkbox]{width:calc(1rem * var(--set-scale));height:calc(1rem * var(--set-scale));accent-color:var(--checkbox-accent);cursor:pointer;margin:0}.intensity-label label{cursor:pointer}.intensity-frame{min-height:calc(19.5rem * 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