Any compositions like this?

[Chessqueen]

It is legal, but too hard to solve for any engine that is NOT programmed with the triangulation method of wasting waiting moves

I'm not sure whether plenty of people can understand me.

You're right, a second one black Pawn can't have come to f4 legally.

Anyhow, it's some easier even as your second one from today, not for engines, but for humans, at least for those who saw some of O.Blathy's other great puzzles before regards

If you see the youtube video it was composed by an engineer, NOT originated from a real game, but to address your question even if you remove the f4 pawn it makes it a little bit easier, but without the triangulation method of moving the White King around and eventually forcing the Black pieces to fall one by one, unless the engine is programmed to execute the triangulation method it will NOT solve this puzzle even without the f4 pawn removed. But if the Engine has the triangulation method programmed, without the f4 pawn it will be solved in less than 98 moves or close to it, starting with Rook to d4, and after f4! simply take the d2 pawn

[d]1krr1b2/2pPpKp1/2P1P1Pp/2PpPp2/7R/8/3p4/8 w - - 0 1

[peter]

NO! NO! NO! What I wanted to say is not the f4 pawn. a-d b-d d-f

But the two black rooks!!!

Ok, ok, second f-pawn theoretically possible, second black rook yet can't have jumped over black- coloured Bishop, that can't have been moved with e- and g- pawn on first rank, h-pawn at second.

[Ignacio]

[d]k4rK1/4R3/2P1Q1P1/1RBB2P1/6P1/6P1/1P3PP1/4NN2 w - - 0 1

Gustav needs 6 seconds for mate in 123 and Chest 17 seconds.
Best.

Ignacio

[Hobacle]

I find the question more important than the one in my title is whether there's a puzzle SF MOJO cannot solve...

Sorry, but as I wrote, output comes with full hash after fome Forward- Backward, DTM wouldn't have arisen soon (maybe not even a proving output- line at all) otherwise probably, didn't wait long enough to find out.
But anyhow this one's much easier for engines than April 1st's one, much less unforced lines and Zugzwang- maneuvres much less deep (plies away from knot- positions).
BTW, did you publicise this one or April 1st's one already in any journal or competition?

Even if I'm not a judge, at least first one's might have good chances for a good award regards

April 1st's one was improved from a composition composed by Uri Blass, and this one is improved from a composition composed by my friend K. So ...?

One of my original puzzle is here: viewtopic.php?t=74856
Reprinted to Talkchess by Pafifi. It's easy for today's engines but I still think it's very fine.

[Chessqueen]

NO! NO! NO! What I wanted to say is not the f4 pawn. a-d b-d d-f

But the two black rooks!!!

Ok, ok, second f-pawn theoretically possible, second black rook yet can't have jumped over black- coloured Bishop, that can't have been moved with e- and g- pawn on first rank, h-pawn at second.

[d]1krr1b2/2pPpKp1/2P1P1Pp/2PpPp2/7R/8/3p4/8 w - - 0 1

Sorry without the f4 pawn, White can NOT checkmate the Black King because of Ka7 and the White Rook will have to continue checking the Black King forcing the three fold repetition

[Hobacle]

The original composition:[pgn][Event ""]
[Site ""]
[Date "2020.02.22"]
[Round ""]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "k7/4R1N1/4QP2/1RB3P1/4rP2/5PPB/1P1P2K1/4Q2N b - - 0 1"]
[PlyCount "108"]

1... Re2+ 2. Qf2 Rxf2+ 3. Kg1 Rf1+ 4. Kh2 Rf2+ 5. Bg2 Rxg2+ 6. Kh3 Rxg3+ 7. Kh4
Rg4+ 8. Kh5 Rxg5+ 9. Kh6 Rg6+ 10. Kh7 Rh6+ 11. Kg8 Rh8+ 12. Kf7 Rf8+ 13. Kg6
Rxf6+ 14. Kh5 Rf5+ 15. Kh4 Rxf4+ 16. Kh3 Rxf3+ 17. Ng3 Rxg3+ 18. Kh4 Rg4+ 19.
Kh5 Rg5+ 20. Kh6 Rg6+ 21. Kh7 Rxg7+ 22. Kh8 Rh7+ 23. Kg8 Rg7+ 24. Kf8 Rg8+ 25.
Kf7 Rf8+ 26. Kg6 Rf6+ 27. Kg5 Rf5+ 28. Kh6 Rf6+ 29. Kh5 Rf5+ 30. Kg4 Rf4+ 31.
Kh3 Rf3+ 32. Kg2 Rf2+ 33. Kh1 Rh2+ 34. Kg1 Rg2+ 35. Kf1 Rf2+ 36. Ke1 Re2+ 37.
Kd1 Rxd2+ 38. Kc1 Rc2+ 39. Kb1 Rxb2+ 40. Ka1 Rb1+ 41. Ka2 Rb2+ 42. Ka3 Rb3+ 43.
Ka4 Ra3+ 44. Kb4 Ra4+ 45. Kc3 Rc4+ 46. Kd2 Rd4+ 47. Ke3 Rd3+ 48. Ke4 Rd4+ 49.
Ke5 Re4+ 50. Kd6 Rxe6+ 51. Kd7 Rxe7+ 52. Bxe7 Ka7 53. Kc7 Ka6 54. Rc5 Ka7 55.
Ra5# *

[/pgn]
Composed by my friend K.

And mine:[pgn][Event "2021.04.21"]
[Site ""]
[Date ""]
[Round ""]
[White "Your Star Sky"]
[Black ""]
[Result "Hobacle"]
[FEN "k5K1/4R3/2P1QrP1/1RBB2P1/6P1/6P1/1P3PP1/4NN2 b - - 0 1"]
[SetUp "1"]

1... Rf8+ 2. Kh7 Rf7+ 3. g7 Rxg7+ 4. Kh8 Rh7+ 5. Kg8 Rg7+ 6. Kf8 Rg8+ 7. Kf7
Rf8+ 8. Kg7 Rf7+ 9. Kh6 Rf6+ 10. g6 Rxg6+ 11. Kh7 Rg7+ 12. Kh8 Rh7+ 13. Kg8
Rg7+ 14. Kf8 Rg8+ 15. Kf7 Rf8+ 16. Kg6 Rf6+ 17. Kh5 Rf5+ 18. g5 Rxg5+ 19. Kh6
Rg6+ 20. Kh7 Rg7+ 21. Kh8 Rh7+ 22. Kg8 Rg7+ 23. Kf8 Rg8+ 24. Kf7 Rf8+ 25. Kg6
Rf6+ 26. Kh5 Rf5+ 27. Kh4 Rf4+ 28. g4 Rxg4+ 29. Kh5 Rg5+ 30. Kh6 Rg6+ 31. Kh7
Rg7+ 32. Kh8 Rh7+ 33. Kg8 Rg7+ 34. Kf8 Rg8+ 35. Kf7 Rf8+ 36. Kg6 Rf6+ 37. Kh5
Rf5+ 38. Kh4 Rf4+ 39. Kh3 Rf3+ 40. Ng3 Rxg3+ 41. Kh4 Rg4+ 42. Kh5 Rg5+ 43. Kh6
Rg6+ 44. Kh7 Rg7+ 45. Kh8 Rh7+ 46. Kg8 Rg7+ 47. Kf8 Rg8+ 48. Kf7 Rf8+ 49. Kg6
Rf6+ 50. Kh5 Rf5+ 51. Kh4 Rf4+ 52. g4 Rxg4+ 53. Kh5 Rg5+ 54. Kh6 Rg6+ 55. Kh7
Rg7+ 56. Kh8 Rh7+ 57. Kg8 Rg7+ 58. Kf8 Rg8+ 59. Kf7 Rf8+ 60. Kg6 Rf6+ 61. Kh5
Rf5+ 62. Kg4 Rf4+ 63. Kh3 Rf3+ 64. Kh2 Rxf2+ 65. Bg2 Rxg2+ 66. Kh3 Rg3+ 67. Kh4
Rg4+ 68. Kh5 Rg5+ 69. Kh6 Rg6+ 70. Kh7 Rg7+ 71. Kh8 Rh7+ 72. Kg8 Rg7+ 73. Kf8
Rg8+ 74. Kf7 Rf8+ 75. Kg6 Rf6+ 76. Kg5 Rf5+ 77. Kh4 Rf4+ 78. Kg3 Rf3+ 79. Kh2
Rf2+ 80. Ng2 Rxg2+ 81. Kh3 Rg3+ 82. Kh4 Rg4+ 83. Kh5 Rg5+ 84. Kh6 Rg6+ 85. Kh7
Rg7+ 86. Kh8 Rh7+ 87. Kg8 Rg7+ 88. Kf8 Rg8+ 89. Kf7 Rf8+ 90. Kg6 Rf6+ 91. Kg5
Rf5+ 92. Kh4 Rf4+ 93. Kh3 Rf3+ 94. Kh2 Rf2+ 95. Kh1 Rh2+ 96. Kg1 Rg2+ 97. Kf1
Rf2+ 98. Ke1 Re2+ 99. Kd1 Rd2+ 100. Kc1 Rc2+ 101. Kb1 Rxb2+ 102. Ka1 Rb1+ 103.
Ka2 Rb2+ 104. Ka3 Rb3+ 105. Ka4 Ra3+ 106. Kb4 Ra4+ 107. Kc3 Rc4+ 108. Kd3 Rd4+
109. Ke2 Re4+ 110. Kf1 Rf4+ 111. Bf2 Rxf2+ 112. Ke1 Re2+ 113. Kd1 Rd2+ 114. Kc1
Rc2+ 115. Kb1 Rb2+ 116. Ka1 Rb1+ 117. Ka2 Ra1+ 118. Kb3 Rb1+ 119. Ka4 Ra1+ 120.
Kb4 Ra4+ 121. Kc5 Rc4+ 122. Kb6 Rxc6+ 123. Qxc6+ Kb8 124. Re8# 1-0
[/pgn]
What I did was just increasing the DTM, from 109 to 247.

And my question is, are there any compositions like this, 16vKR or just 16v2?

[Spliffjiffer]

[d]k4rK1/4R3/2P1Q1P1/1RBB2P1/6P1/6P1/1P3PP1/4NN2 w - - 0 1

Gustav needs 6 seconds for mate in 123 and Chest 17 seconds.
Best.

Ignacio

confirmed...Chest in autoturbo-mode sees mate in 123 in 17 sec here as well (Ryzen 3600? )

btw, is Gustav publicly available or still commercial...if available for free, any link?
thx in advance

thx Hobacle for your nice puzzle

[Spliffjiffer]

im sry to pollute your thread but i made a mistake in my post above...i came to the same conclusion as Ignacio did but without having read his post...so i didnt dare to use the default settings and tryed it with the special-mode and took Peters (and mine) analysis to get the right settings...i thought that autoturbo-mode would ignore my settings but it doesnt obviously....so for those who want to confirm our results here are the correct settings i used:

ChestUCI-settings:

HashSize: 2048
ProblemType: Mate
SearchDepth: 123
SearchMode: Special (or autoturbo, lol)
ChecksOnly: 0
ThreatDeath: 3
ThreatRange: 3
KingSquares: 3
PieceLimit: 2
MaxMoves: 14

everything else on default
sry again to those who were probably irritated that they cant reproduce our results

Peer

[Chessqueen]

What engines solve this position in less than 8 moves
[d]1RR3Q1/8/5p2/4p3/P3B3/5ppp/4prqk/K3Nbrn w - - 1 1

Let us analyze this curious position. Black’s pieces are completely locked up in the corner, but they form a strong fortress against which White cannot break through, at least not in time. Here’s a try sequence that Stockfish finds almost instantaneously, where White launches a successful assault on h3 – 1.Qe6 f5 2.Bxf5 e4 3.Rh8 e3 4.Bxh3 Qxh3 5.Rxh3+ Bxh3 6.Rh8 Rxe1 7.Qxh3+ Kg1 8.Qxh1, but the mate is one move too slow! As one might expect,the actual solution requires a more subtle approach. White’s plan is to deploy the knight to execute a smothered mate on g4, but the piece cannot begin its three-move trip immediately because 1…e1=Q would unleash the black force against the white king. Rather, White must start with four preparatory moves designed to protect the king, so that the knight trip becomes safe to play. If White shifts the bishop as part of this fore-plan, Black’s e5- and f6-pawns will be forced by zugzwang to march forward two steps each, conveniently unguarding the three squares that the knight The correct fore-plan sees all four white line-pieces making attractive long-range moves to cover the king, which stays on its
initial square. Notice how White’s move order is neatly forced, as these line-pieces must avoid interfering with each other. 1.Rc1! f5 2.Bc2! e4 3.Rb2! f4 4.Qb3! e3 5.Nd3 e1=Q; now that the coordinated white army has forestalled checks by Black’s promoted queen, f2-rook, and f1-bishop, 6.Ne5 is viable and Black cannot prevent 7.Ng4.


The correct fore-plan sees all four white line-pieces making attractive long-range moves to cover the king, which stays on its initial square. Notice how White’s move order is neatly forced, as these line-pieces must avoid interfering with each other. 1.Rc1! f5 2.Bc2! e4 3.Rb2! f4 4.Qb3! e3 5.Nd3 e1=Q; now that the coordinated white army has forestalled checks by Black’s promoted queen, f2-rook, and f1-bishop, 6.Ne5 is viable and Black cannot prevent 7.Ng4. As you can see Stockfish 13 NNUE is one move too slow

FEN: 1RR3Q1/8/5p2/4p3/P3B3/5ppp/4prqk/K3Nbrn w - - 1 1

Stockfish 13:
6/6 00:00 9k 4,437k 0.00 Qg4 f5 Bxf5 e4 Bxe4
7/6 00:00 42k 6,969k 0.00 Qg4 f5 Bxf5 e4 Bxe4
8/6 00:00 75k 7,506k 0.00 Qg4 f5 Bxf5 e4 Bxe4
9/6 00:00 109k 7,788k 0.00 Qg4 f5 Bxf5 e4 Bxe4
10/6 00:00 151k 7,929k 0.00 Qg4 f5 Bxf5 e4 Bxe4
11/6 00:00 152k 7,982k 0.00 Qg4 f5 Bxf5 e4 Bxe4
12/6 00:00 152k 8,024k 0.00 Qg4 f5 Bxf5 e4 Bxe4
13/6 00:00 153k 8,070k 0.00 Qg4 f5 Bxf5 e4 Bxe4
14/6 00:00 155k 7,746k 0.00 Qg4 f5 Bxf5 e4 Bxe4
15/6 00:00 156k 7,808k 0.00 Qg4 f5 Bxf5 e4 Bxe4
16/6 00:00 157k 7,867k 0.00 Qg4 f5 Bxf5 e4 Bxe4
17/6 00:00 158k 7,924k 0.00 Qg4 f5 Bxf5 e4 Bxe4
18/6 00:00 160k 7,991k 0.00 Qg4 f5 Bxf5 e4 Bxe4
19/6 00:00 161k 8,050k 0.00 Qg4 f5 Bxf5 e4 Bxe4
20/6 00:00 162k 8,109k 0.00 Qg4 f5 Bxf5 e4 Bxe4
21/6 00:00 164k 8,180k 0.00 Qg4 f5 Bxf5 e4 Bxe4
22/6 00:00 166k 7,893k 0.00 Qg4 f5 Bxf5 e4 Bxe4
23/6 00:00 168k 7,992k 0.00 Qg4 f5 Bxf5 e4 Bxe4
24/6 00:00 169k 8,044k 0.00 Qg4 f5 Bxf5 e4 Bxe4
25/6 00:00 170k 8,098k 0.00 Qg4 f5 Bxf5 e4 Bxe4
26/6 00:00 171k 8,155k 0.00 Qg4 f5 Bxf5 e4 Bxe4
27/6 00:00 173k 8,217k 0.00 Qg4 f5 Bxf5 e4 Bxe4
28/6 00:00 177k 8,050k 0.00 Qg4 f5 Bxf5 e4 Bxe4
29/6 00:00 184k 7,982k 0.00 Qg4 f5 Bxf5 e4 Bxe4
30/6 00:00 202k 8,084k 0.00 Qg4 f5 Bxf5 e4 Bxe4
31/6 00:00 220k 8,152k 0.00 Qg4 f5 Bxf5 e4 Bxe4
32/6 00:00 241k 8,030k 0.00 Qg4 f5 Bxf5 e4 Bxe4
33/6 00:00 274k 8,065k 0.00 Qg4 f5 Bxf5 e4 Bxe4
34/6 00:00 325k 8,122k 0.00 Qg4 f5 Bxf5 e4 Bxe4
35/6 00:00 364k 8,095k 0.00 Qg4 f5 Bxf5 e4 Bxe4
36/6 00:00 403k 8,233k 0.00 Qg4 f5 Bxf5 e4 Bxe4
37/6 00:00 836k 7,885k 0.00 Qg4 f5 Bxf5 e4 Bxe4
38/6 00:00 980k 7,716k 0.00 Qg4 f5 Bxf5 e4 Bxe4
39/6 00:00 992k 7,750k 0.00 Qg4 f5 Bxf5 e4 Bxe4
40/6 00:00 1,186k 7,754k 0.00 Qg4 f5 Bxf5 e4 Bxe4
41/6 00:00 1,393k 7,739k 0.00 Qg4 f5 Bxf5 e4 Bxe4
42/6 00:00 1,447k 7,695k 0.00 Qg4 f5 Bxf5 e4 Bxe4
43/6 00:00 1,842k 7,644k 0.00 Qg4 f5 Bxf5 e4 Bxe4
44/6 00:00 2,309k 7,571k 0.00 Qg4 f5 Bxf5 e4 Bxe4
45/6 00:00 6,609k 8,139k 0.00 Qg4 f5 Bxf5 e4 Bxe4
46/6 00:00 6,830k 8,121k 0.00 Qg4 f5 Bxf5 e4 Bxe4
47/6 00:00 6,891k 8,116k 0.00 Qg4 f5 Bxf5 e4 Bxe4
48/6 00:00 7,003k 8,096k 0.00 Qg4 f5 Bxf5 e4 Bxe4
49/6 00:01 9,547k 8,132k 0.00 Qg4 f5 Bxf5 e4 Bxe4
50/6 00:01 9,551k 8,128k 0.00 Qg4 f5 Bxf5 e4 Bxe4
51/6 00:01 10,331k 8,135k 0.00 Qg4 f5 Bxf5 e4 Bxe4
52/6 00:01 11,335k 8,196k 0.00 Qg4 f5 Bxf5 e4 Bxe4
53/6 00:01 12,113k 8,218k 0.00 Qg4 f5 Bxf5 e4 Bxe4
54/6 00:01 12,841k 8,231k 0.00 Qg4 f5 Bxf5 e4 Bxe4
55/6 00:01 13,917k 8,245k 0.00 Qg4 f5 Bxf5 e4 Bxe4
56/6 00:01 15,289k 8,287k 0.00 Qg4 f5 Bxf5 e4 Bxe4
57/6 00:02 18,547k 8,336k 0.00 Qg4 f5 Bxf5 e4 Bxe4
58/6 00:06 58,527k 8,868k 0.00 Qg4 f5 Bxf5 e4 Bxe4
59/6 00:07 63,246k 8,812k 0.00 Qg4 f5 Bxf5 e4 Bxe4
60/6 00:07 67,882k 8,786k 0.00 Qg4 f5 Bxf5 e4 Bxe4
61/18+ 00:09 80,547k 8,729k +0.08 Qe6
61/18+ 00:09 80,560k 8,728k +0.16 Qe6
61/18+ 00:09 80,563k 8,728k +0.28 Qe6
61/18+ 00:09 80,567k 8,728k +1.69 Qe6
61/18+ 00:09 80,570k 8,728k +1.93 Qe6
61/18+ 00:09 80,572k 8,728k +2.26 Qe6
61/18+ 00:09 80,573k 8,728k +2.73 Qe6
61/18+ 00:09 80,574k 8,729k +3.33 Qe6
61/18+ 00:09 80,575k 8,729k +4.11 Qe6
61/18+ 00:09 81,165k 8,721k +5.03 Qe6
61/18+ 00:09 81,923k 8,720k +6.22 Qe6
61/18+ 00:09 83,665k 8,737k +7.72 Qe6
61/18+ 00:09 86,904k 8,786k +9.62 Qe6
61/18+ 00:10 89,050k 8,822k +12.01 Qe6
61/18+ 00:10 90,686k 8,856k +15.02 Qe6
61/18+ 00:10 91,528k 8,872k +18.81 Qe6
61/18+ 00:10 91,574k 8,873k +24.37 Qe6
61/18+ 00:10 91,590k 8,872k +31.13 Qe6
61/18+ 00:10 91,598k 8,872k +39.41 Qe6
61/18+ 00:10 91,606k 8,872k +49.58 Qe6
61/18+ 00:10 91,613k 8,873k +61.40 Qe6
61/18+ 00:10 91,744k 8,874k +76.89 Qe6
61/18+ 00:10 91,747k 8,874k +96.09 Qe6
61/18+ 00:10 91,754k 8,875k +119.90 Qe6
61/18+ 00:10 91,756k 8,875k +149.49 Qe6
61/18 00:10 91,816k 8,875k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
62/18 00:10 94,743k 8,922k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
63/18 00:10 95,326k 8,929k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
64/18 00:10 95,986k 8,936k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
65/18 00:10 97,421k 8,954k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
66/18 00:11 100,108k 9,001k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
67/18 00:11 102,425k 9,038k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
68/18 00:11 105,307k 9,086k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
69/18 00:11 108,785k 9,142k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
70/18 00:12 112,805k 9,202k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
71/18 00:12 117,773k 9,287k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
72/18 00:12 119,664k 9,319k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
73/18 00:13 125,336k 9,417k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
74/18 00:14 134,193k 9,555k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
75/18 00:14 138,365k 9,621k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
76/18 00:14 145,741k 9,741k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
77/18 00:15 151,773k 9,841k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
78/18 00:16 163,482k 10,007k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
79/18 00:17 177,623k 10,185k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
80/18 00:18 189,103k 10,312k +M9 Qe6 f5 Bxf5 e4 Rh8 e3 Bxh3 Qxh3 Kb2 Bg2 Rxh3+ Bxh3 Rh8 Rxe1 Qxh3+ Kg1 Qxh1+
81/18 00:19 199,161k 10,437k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
82/16 00:19 206,842k 10,530k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
83/16 00:19 210,384k 10,566k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
84/16 00:20 222,138k 10,685k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
85/16 00:21 230,667k 10,770k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
86/16 00:22 244,443k 10,883k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
87/16 00:23 252,922k 10,970k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
88/16 00:24 267,506k 11,098k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
89/16 00:25 285,828k 11,257k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
90/16 00:26 303,731k 11,387k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
91/16 00:28 329,064k 11,567k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
92/16 00:30 359,425k 11,750k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
93/16 00:32 382,565k 11,889k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
94/16 00:35 423,457k 12,086k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
95/16 00:38 469,957k 12,309k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
96/16 00:40 508,920k 12,465k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
97/16 00:43 548,053k 12,608k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
98/16 00:45 574,396k 12,706k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
99/16 00:49 644,904k 12,926k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
100/16 00:53 706,273k 13,094k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
101/16 00:58 767,936k 13,232k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
102/16 01:05 873,923k 13,444k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
103/16 01:08 928,501k 13,535k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
104/16 01:14 1,024,536k 13,700k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
105/16 01:22 1,138,221k 13,837k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
106/16 01:29 1,255,954k 13,967k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
107/16 01:36 1,354,787k 14,063k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
108/16 01:48 1,550,097k 14,292k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
109/16 01:57 1,689,202k 14,412k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
110/16 02:08 1,874,328k 14,534k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
111/16 02:22 2,093,982k 14,685k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
112/16 02:39 2,370,718k 14,834k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
113/16 02:49 2,531,066k 14,890k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
114/16 03:06 2,793,507k 14,985k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
115/16 03:15 2,935,363k 15,040k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
116/16 03:44 3,409,031k 15,214k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
117/16 04:13 3,905,482k 15,386k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
118/16 04:31 4,211,352k 15,485k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
119/16 05:03 4,738,100k 15,619k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
120/16 05:25 5,104,903k 15,702k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
121/16 06:04 5,771,007k 15,848k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
122/16 06:25 6,127,845k 15,908k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
123/16 06:57 6,680,175k 15,993k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
124/16 07:40 7,427,062k 16,114k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
125/16 08:25 8,183,265k 16,203k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
126/16 09:11 8,967,968k 16,275k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
127/16 09:54 9,709,120k 16,330k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
128/16 10:44 10,576,151k 16,401k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
129/16 11:41 11,558,628k 16,488k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
130/16 13:03 12,965,799k 16,548k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
131/16 13:52 13,819,982k 16,604k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
132/16 14:35 14,583,213k 16,664k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+
133/16 15:47 15,875,684k 16,750k +M8 Qe6 f5 Bb1 e4 Qc4 e3 Qc2 f4 Nd3 e1Q Ne5 Qc3+ Rxc3 Rxc2 Ng4+

[peter]

And my question is, are there any compositions like this, 16vKR or just 16v2?

Well, you'd probably not call it compositions, but Andreas Strangmüller did some mate solving experiments with postions of very big material imbalance here:

http://talkchess.com/forum3/viewtopic.p ... gm#p888573