square

chess, jigsaw puzzle, puzzle, pawns, zugzwang, chessmen, inkblot, matryoshka, polyhedron, gameboard, checkmate, dodecahedron, jigsaw, squares, diagonals, endgame, mancala, rectangles, rook, checkerboards, queenside, dice, botvinnik, gary kasparov, trapezoids, kingside, hexagons, rhombus, tetrahedrons, semicircles, parallelograms, mercator projection, cube, boris spassky, korchnoi, alekhine, karpov, kasparov, pingpong, worktable, solitaire, backgammon, tangram, anatoli karpov, equilateral triangle, grandmaster, doily, roulette wheel, counterplay, thrones, thumbtack, billiard table, bas relief, chessmaster, faits accomplis, isosceles, demilune, dominoes, castling, tapestry, marbles, diorama, tableau, diarchy, dots, cloudscape, playfield, equations, triangles, vitrine, simul, kazimir malevich, hieratic, footstool, colossi, hopscotch, whiteboard, realpolitik, parcheesi, sudoku, hexagram, lattices, infinities, knight, triangular prism, shogi, pentagons, chalkboard, geopolitics, iconostasis, protractor, mandala, hieroglyph, mallets, chaise longue, mosaic, rebus, isosceles triangle, parquetry, geometer, suprematism, ruler, checkerboard, blackboard, iceberg, colossus, cornucopia, supermarket, umbrella, caldron, anvil, billboard, octopus, powerhouse, spaceship, beehive, cauldron, circus, cobweb, handcuffs

castle, rook

board, gameboard

checkerboard