1n2Nb1r/rp2kpp1/p1b1p2p/8/1Ppn3P/3P1PP1/PB2P1B1/1R3QKR b - - 1 20
FEN state: 1n2Nb1r/rp2kpp1/p1b1p2p/8/1Ppn3P/3P1PP1/PB2P1B1/1R3QKR b - - 1 20 ; Best move: e6e5
The current state of the chess board is: Black knight at b8, white knight at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black king at e7, black pawn at f7 and black pawn at g7. Black pawn at a6, black bishop at c6, black pawn at e6 and black pawn at h6. White pawn at b4, black pawn at c4, black knight at d4 and white pawn at h4. White pawn at d3, white pawn at f3 and white pawn at g3. White pawn at a2, white bishop at b2, white pawn at e2 and white bishop at g2. White rook at b1, white queen at f1, white king at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. Black to move.