checkmate in 11

Analyzing position: 8/8/8/q7/2k1R3/8/8/3K4 b - - 0 1

Initial position:
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 q . . . . . . . 5
4 . . k . R . . . 4
3 . . . . . . . . 3
2 . . . . . . . . 2
1 . . . K . . . . 1
  a b c d e f g h
Side to move: Black

No checkmate in one move found.
Proceeding with deeper search...
Searching for mate in 1 moves...
Depth 1 completed in 0.0020 seconds
Searching for mate in 2 moves...
Depth 2 completed in 0.0056 seconds
Searching for mate in 3 moves...
Depth 3 completed in 0.0477 seconds
Searching for mate in 4 moves...
Depth 4 completed in 0.1853 seconds
Searching for mate in 5 moves...
Depth 5 completed in 1.5417 seconds
Searching for mate in 6 moves...
Depth 6 completed in 4.9635 seconds
Searching for mate in 7 moves...
Depth 7 completed in 42.0163 seconds
Searching for mate in 8 moves...
Depth 8 completed in 118.7615 seconds
Searching for mate in 9 moves...
Depth 9 completed in 1461.1566 seconds
Searching for mate in 10 moves...
Depth 10 completed in 25845.2522 seconds
Searching for mate in 11 moves...
Depth 11 completed in 58850.2191 seconds
Mate in 11 found!

Checkmate sequence found:
Move 1: Black plays kc4-d3
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 q . . . . . . . 5
4 . . . . R . . . 4
3 . . . k . . . . 3
2 . . . . . . . . 2
1 . . . K . . . . 1
  a b c d e f g h
Move 2: White plays Re4-d4
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 q . . . . . . . 5
4 . . . R . . . . 4
3 . . . k . . . . 3
2 . . . . . . . . 2
1 . . . K . . . . 1
  a b c d e f g h
Move 3: Black plays kd3-d4
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 q . . . . . . . 5
4 . . . k . . . . 4
3 . . . . . . . . 3
2 . . . . . . . . 2
1 . . . K . . . . 1
  a b c d e f g h
Move 4: White plays Kd1-e2
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 q . . . . . . . 5
4 . . . k . . . . 4
3 . . . . . . . . 3
2 . . . . K . . . 2
1 . . . . . . . . 1
  a b c d e f g h
Move 5: Black plays qa5-f5
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . q . . 5
4 . . . k . . . . 4
3 . . . . . . . . 3
2 . . . . K . . . 2
1 . . . . . . . . 1
  a b c d e f g h
Move 6: White plays Ke2-d2
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . q . . 5
4 . . . k . . . . 4
3 . . . . . . . . 3
2 . . . K . . . . 2
1 . . . . . . . . 1
  a b c d e f g h
Move 7: Black plays qf5-f2
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . . . . 5
4 . . . k . . . . 4
3 . . . . . . . . 3
2 . . . K . q . . 2
1 . . . . . . . . 1
  a b c d e f g h
Move 8: White plays Kd2-c1
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . . . . 5
4 . . . k . . . . 4
3 . . . . . . . . 3
2 . . . . . q . . 2
1 . . K . . . . . 1
  a b c d e f g h
Move 9: Black plays kd4-c3
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . . . . 5
4 . . . . . . . . 4
3 . . k . . . . . 3
2 . . . . . q . . 2
1 . . K . . . . . 1
  a b c d e f g h
Move 10: White plays Kc1-b1
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . . . . 5
4 . . . . . . . . 4
3 . . k . . . . . 3
2 . . . . . q . . 2
1 . K . . . . . . 1
  a b c d e f g h
Move 11: Black plays qf2-b2
  a b c d e f g h
8 . . . . . . . . 8
7 . . . . . . . . 7
6 . . . . . . . . 6
5 . . . . . . . . 5
4 . . . . . . . . 4
3 . . k . . . . . 3
2 . q . . . . . . 2
1 . K . . . . . . 1
  a b c d e f g h
Checkmate! Black wins.

Total analysis time: 227994.4939 seconds