r1bk2nr/1p6/1n1bp2p/p1pp1p2/P1PPPPP1/1N4Q1/1P2N3/R1B1KBR1 w - - 0 21
FEN state: r1bk2nr/1p6/1n1bp2p/p1pp1p2/P1PPPPP1/1N4Q1/1P2N3/R1B1KBR1 w - - 0 21 ; Best move: d4c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at b7. Black knight at b6, black bishop at d6, black pawn at e6 and black pawn at h6. Black pawn at a5, black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at a4, white pawn at c4, white pawn at d4, white pawn at e4, white pawn at f4 and white pawn at g4. White knight at b3 and white queen at g3. White pawn at b2 and white knight at e2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.