1nbk2nr/1p1pb1p1/r1p2p2/1B4Bp/p1NpP3/2P4N/PP2RPPP/1QKR4 w - - 10 21
FEN state: 1nbk2nr/1p1pb1p1/r1p2p2/1B4Bp/p1NpP3/2P4N/PP2RPPP/1QKR4 w - - 10 21 ; Best move: b5a6
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at d7, black bishop at e7 and black pawn at g7. Black rook at a6, black pawn at c6 and black pawn at f6. White bishop at b5, white bishop at g5 and black pawn at h5. Black pawn at a4, white knight at c4, black pawn at d4 and white pawn at e4. White pawn at c3 and white knight at h3. White pawn at a2, white pawn at b2, white rook at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White queen at b1, white king at c1 and white rook at d1. Both players have exhausted their castles. Half move number is 10. Full move number is 21. White to move.