4k2r/r1pnbp2/6p1/p2p1nPp/PP2Bp1P/Qq1P3b/2PBP3/2R1K1NR w k - 4 26
FEN state: 4k2r/r1pnbp2/6p1/p2p1nPp/PP2Bp1P/Qq1P3b/2PBP3/2R1K1NR w k - 4 26 ; Best move: a3b3
The current state of the chess board is: Black king at e8 and black rook at h8. Black rook at a7, black pawn at c7, black knight at d7, black bishop at e7 and black pawn at f7. Black pawn at g6. Black pawn at a5, black pawn at d5, black knight at f5, white pawn at g5 and black pawn at h5. White pawn at a4, white pawn at b4, white bishop at e4, black pawn at f4 and white pawn at h4. White queen at a3, black queen at b3, white pawn at d3 and black bishop at h3. White pawn at c2, white bishop at d2 and white pawn at e2. White rook at c1, white king at e1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 4. Full move number is 26. White to move.