1nb1nb1r/1r4pq/p2kp3/1pp2p1p/P2PP1PP/2P5/1P1K1P1R/RN3BNQ w - - 4 21
FEN state: 1nb1nb1r/1r4pq/p2kp3/1pp2p1p/P2PP1PP/2P5/1P1K1P1R/RN3BNQ w - - 4 21 ; Best move: g4f5
The current state of the chess board is: Black knight at b8, black bishop at c8, black knight at e8, black bishop at f8 and black rook at h8. Black rook at b7, black pawn at g7 and black queen at h7. Black pawn at a6, black king at d6 and black pawn at e6. Black pawn at b5, black pawn at c5, black pawn at f5 and black pawn at h5. White pawn at a4, white pawn at d4, white pawn at e4, white pawn at g4 and white pawn at h4. White pawn at c3. White pawn at b2, white king at d2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white bishop at f1, white knight at g1 and white queen at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. White to move.