| 100% | CASTLING | 8 | Two-piece chess move |
| 99% | CASTLE | 6 | Move two pieces at once, in chess |
| 88% | CASTLED | 7 | Made a two-piece chess move |
| 88% | CASTLES | 7 | Makes a two-piece chess move |
| 80% | BUGHOUSE | 8 | Chess variant played by four players on two boards, in which captured pieces on one board are moved to the other |
| 79% | PAWNSHOP | 8 | Chess piece's move? |
| 76% | BISHOP | 6 | Piece that moves diagonally in chess |
| 76% | PAWN | 4 | Chess piece that's moved first |
| 75% | KNIGHT | 6 | Uniquely moving chess piece |
| 75% | ROOKS | 5 | Orthogonally moving chess pieces |
| 74% | ROOK | 4 | Chess piece that can't move diagonally |
| 74% | BISHOP | 6 | Chess piece that can only move diagonally |
| 74% | PAWN | 4 | Chess piece not allowed to move backward |
| 74% | BISHOPS | 7 | Chess pieces that can only move diagonally |
| 74% | PAWNS | 5 | Chess pieces that are often moved first |
| 74% | BISHOPS | 7 | Chess pieces that move diagonally |
| 74% | BISHOP | 6 | Chess piece that moves diagonally |
| 74% | PAWNS | 5 | Chess pieces usually moved first |
| 73% | ROOK | 4 | Chess piece that can move vertically or horizontally |
| 73% | PAWNS | 5 | Chess pieces that usually move just one space |
| 73% | CASTLES | 7 | Moves two pieces at once, in a way |
| 73% | PAWN | 4 | First piece moved in chess, often |
| 72% | SAC | 3 | Any chess move in which one gives up a piece, informally |
| 72% | ROOK | 4 | Chess piece moved during castling, along with the king |
| 71% | SACRIFICE | 9 | Tactical move of surrendering a chess piece |
| 71% | BISHOPS | 7 | These chess pieces can only move diagonally |
| 71% | ROOK | 4 | Chess piece that moves horizontally and vertically |
| 71% | BISHOP | 6 | Chess piece that moves on the diagonal |
| 70% | KINGS | 5 | Chess pieces that can move one square in any direction |
| 69% | ROOK | 4 | Chess piece which can move horizontally or vertically through unoccupied squares |