1r3k1r/p3pp2/2ppb2p/7P/1Q6/N1PP4/P2BBPP1/2R1K1R1 w - - 0 20
FEN state: 1r3k1r/p3pp2/2ppb2p/7P/1Q6/N1PP4/P2BBPP1/2R1K1R1 w - - 0 20 ; Best move: b4b8
The current state of the chess board is: Black rook at b8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at f7. Black pawn at c6, black pawn at d6, black bishop at e6 and black pawn at h6. White pawn at h5. White queen at b4. White knight at a3, white pawn at c3 and white pawn at d3. White pawn at a2, white bishop at d2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at c1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.