r4bnr/p1p1pk1p/3Pbp2/6p1/n7/PQ2PP1P/1P1PK1P1/RNB3NR w - - 5 15
FEN state: r4bnr/p1p1pk1p/3Pbp2/6p1/n7/PQ2PP1P/1P1PK1P1/RNB3NR w - - 5 15 ; Best move: b3a4
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7, black king at f7 and black pawn at h7. White pawn at d6, black bishop at e6 and black pawn at f6. Black pawn at g5. Black knight at a4. White pawn at a3, white queen at b3, white pawn at e3, white pawn at f3 and white pawn at h3. White pawn at b2, white pawn at d2, white king at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 15. White to move.