1r1bk1nr/pbqp4/n2p1p1p/Npp3p1/PP1PP3/B7/2P1QPPP/2R1KB1R w K - 0 19
FEN state: 1r1bk1nr/pbqp4/n2p1p1p/Npp3p1/PP1PP3/B7/2P1QPPP/2R1KB1R w K - 0 19 ; Best move: a4b5
The current state of the chess board is: Black rook at b8, black bishop at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black queen at c7 and black pawn at d7. Black knight at a6, black pawn at d6, black pawn at f6 and black pawn at h6. White knight at a5, black pawn at b5, black pawn at c5 and black pawn at g5. White pawn at a4, white pawn at b4, white pawn at d4 and white pawn at e4. White bishop at a3. White pawn at c2, white queen at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 19. White to move.