rnbq2r1/3k4/1p1b2pp/p1n1p2P/2p1pPP1/PNBP4/RPP1N2R/3QK3 b - - 2 20
FEN state: rnbq2r1/3k4/1p1b2pp/p1n1p2P/2p1pPP1/PNBP4/RPP1N2R/3QK3 b - - 2 20 ; Best move: c4b3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black rook at g8. Black king at d7. Black pawn at b6, black bishop at d6, black pawn at g6 and black pawn at h6. Black pawn at a5, black knight at c5, black pawn at e5 and white pawn at h5. Black pawn at c4, black pawn at e4, white pawn at f4 and white pawn at g4. White pawn at a3, white knight at b3, white bishop at c3 and white pawn at d3. White rook at a2, white pawn at b2, white pawn at c2, white knight at e2 and white rook at h2. White queen at d1 and white king at e1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.