1r4nr/1pp3pp/pb3pk1/3p1bP1/2Pp2RP/P2n4/1PQKP3/RN3BN1 w - - 3 21
FEN state: 1r4nr/1pp3pp/pb3pk1/3p1bP1/2Pp2RP/P2n4/1PQKP3/RN3BN1 w - - 3 21 ; Best move: c4c5
The current state of the chess board is: Black rook at b8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at g7 and black pawn at h7. Black pawn at a6, black bishop at b6, black pawn at f6 and black king at g6. Black pawn at d5, black bishop at f5 and white pawn at g5. White pawn at c4, black pawn at d4, white rook at g4 and white pawn at h4. White pawn at a3 and black knight at d3. White pawn at b2, white queen at c2, white king at d2 and white pawn at e2. White rook at a1, white knight at b1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. White to move.