rnb2knr/4q3/1ppp4/1Q2pp1p/p4PPp/PP2P2R/3N4/R1B1K1N1 w Q - 0 19
FEN state: rnb2knr/4q3/1ppp4/1Q2pp1p/p4PPp/PP2P2R/3N4/R1B1K1N1 w Q - 0 19 ; Best move: b5b6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black queen at e7. Black pawn at b6, black pawn at c6 and black pawn at d6. White queen at b5, black pawn at e5, black pawn at f5 and black pawn at h5. Black pawn at a4, white pawn at f4, white pawn at g4 and black pawn at h4. White pawn at a3, white pawn at b3, white pawn at e3 and white rook at h3. White knight at d2. White rook at a1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 19. White to move.