Ключевые слова: abstract, answer, assemble, background, big, blue, board, business, challenge, closeup, color, concept, connect, connection, difficulty, element, flat, game, idea, jigsaw, join, leisure, many, match, metaphor, object, one, paper, part, piece, pieces, play, playing, problem, puzzle, question, red, separated, skill, solution, solve, stack, strategy, success, team, teamwork, tile, togetherness, toy, white,