2b1kb1r/B2ppp1R/2p5/p4nP1/R5P1/3P1P2/1PQKP1q1/1N3BN1 b k - 4 21
FEN state: 2b1kb1r/B2ppp1R/2p5/p4nP1/R5P1/3P1P2/1PQKP1q1/1N3BN1 b k - 4 21 ; Best move: g2f1
The current state of the chess board is: Black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. White bishop at a7, black pawn at d7, black pawn at e7, black pawn at f7 and white rook at h7. Black pawn at c6. Black pawn at a5, black knight at f5 and white pawn at g5. White rook at a4 and white pawn at g4. White pawn at d3 and white pawn at f3. White pawn at b2, white queen at c2, white king at d2, white pawn at e2 and black queen at g2. White knight at b1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 4. Full move number is 21. Black to move.