1nbkn3/1p2b2r/r3P3/p1p2p1p/P4BpP/1P2PP2/2PK2PN/R4B1R w - - 1 20
FEN state: 1nbkn3/1p2b2r/r3P3/p1p2p1p/P4BpP/1P2PP2/2PK2PN/R4B1R w - - 1 20 ; Best move: f4b8
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at d8 and black knight at e8. Black pawn at b7, black bishop at e7 and black rook at h7. Black rook at a6 and white pawn at e6. Black pawn at a5, black pawn at c5, black pawn at f5 and black pawn at h5. White pawn at a4, white bishop at f4, black pawn at g4 and white pawn at h4. White pawn at b3, white pawn at e3 and white pawn at f3. White pawn at c2, white king at d2, white pawn at g2 and white knight at h2. White rook at a1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. White to move.