rn1qkb2/1pp1p3/b2pnppr/7p/pPP1PP2/P2P2P1/4QN1P/R1BK1BNR b - - 2 20
FEN state: rn1qkb2/1pp1p3/b2pnppr/7p/pPP1PP2/P2P2P1/4QN1P/R1BK1BNR b - - 2 20 ; Best move: b7b5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at b7, black pawn at c7 and black pawn at e7. Black bishop at a6, black pawn at d6, black knight at e6, black pawn at f6, black pawn at g6 and black rook at h6. Black pawn at h5. Black pawn at a4, white pawn at b4, white pawn at c4, white pawn at e4 and white pawn at f4. White pawn at a3, white pawn at d3 and white pawn at g3. White queen at e2, white knight at f2 and white pawn at h2. White rook at a1, white bishop at c1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.