rn1q1r2/2k1p1b1/p1pp2p1/1p3pN1/NPP2P2/P3P1P1/2QP3P/RbB1KB1R b KQ - 0 20
FEN state: rn1q1r2/2k1p1b1/p1pp2p1/1p3pN1/NPP2P2/P3P1P1/2QP3P/RbB1KB1R b KQ - 0 20 ; Best move: b1c2
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black rook at f8. Black king at c7, black pawn at e7 and black bishop at g7. Black pawn at a6, black pawn at c6, black pawn at d6 and black pawn at g6. Black pawn at b5, black pawn at f5 and white knight at g5. White knight at a4, white pawn at b4, white pawn at c4 and white pawn at f4. White pawn at a3, white pawn at e3 and white pawn at g3. White queen at c2, white pawn at d2 and white pawn at h2. White rook at a1, black bishop at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 20. Black to move.