4r2r/p1qk1ppp/npp4n/3p4/1P1P1P1b/2PBP2P/P6P/RN1K2NR b - - 4 22
FEN state: 4r2r/p1qk1ppp/npp4n/3p4/1P1P1P1b/2PBP2P/P6P/RN1K2NR b - - 4 22 ; Best move: a6b4
The current state of the chess board is: Black rook at e8 and black rook at h8. Black pawn at a7, black queen at c7, black king at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at b6, black pawn at c6 and black knight at h6. Black pawn at d5. White pawn at b4, white pawn at d4, white pawn at f4 and black bishop at h4. White pawn at c3, white bishop at d3, white pawn at e3 and white pawn at h3. White pawn at a2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 22. Black to move.