I have finally succeeded in making an up-to-date list of my studies on the personal site Chichitza
For all my compositions, I tried to add an element of difficulty for the engines (be it fortress, zugzwang, long-term strategy that goes beyond the horizon, etc., or a combination of those).
So, here is my Kornrade Test (for humans and machines):
Code: Select all
01 Constrictor +- [FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - 0 1"]
02 Mirror +- [FEN "6Nk/pp2Np1p/2p2Pp1/2R2bP1/7K/P7/1q1n1Q2/5n2 w - - 0 1"]
03 Walk +- [FEN "5B1q/3N3p/p3p2p/7k/B7/5PP1/K6P/8 w - - 0 1"]
04 Detour +- [FEN "7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - 0 1"]
05 Stubbornness == [FEN "8/b4kp1/2p1p3/5pB1/p1PP4/1p6/3K1P2/3N4 w - - 0 1"]
06 Guard Change +- [FEN "2k4N/Q1np4/2p2Bpp/1p1P4/pPP1p2P/P7/7q/1K6 w - - 0 1"]
08 Slowness +- [FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - 0 1"]
09 Standstill == [FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - 0 1"]
10 Shelter == [FEN "4B3/k1K1pp2/p3bq2/2p1p3/1p2P1P1/4P2Q/nR6/8 w - - 0 1"]
11 Chase +- [FEN "4N2k/4PB1p/7P/B1p5/2P5/3q2Pp/1P3P1K/2r5 w - - 0 1"]
12 Desperation == [FEN "2b5/1pr4p/3bp1pk/1p6/1PpN2PP/K1P1n3/P3N1R1/3R4 w - - 0 1"]
13 Shield +- [FEN "8/4Pr1N/8/6PN/8/3K1ppp/4prkb/4Bbnn w - - 0 1"]
14 Fork-field +- [FEN "3B2r1/n3Pp2/P7/5k1p/q3NP2/7K/5P2/4NB2 w - - 0 1"]
15 Harassment +- [FEN "8/q1p1N1p1/3p1p1p/pk5P/1p2BB2/8/PK3P2/8 w - - 0 1"]
16 Smothering +- [FEN "6kq/2p4p/6P1/5nN1/K7/2P5/7B/3B4 w - - 0 1"]
* Smothering II +- [FEN "5k2/2p4p/6P1/1p3n2/3q4/PB4BN/KP5P/8 w - - 0 1"]
17 Fishing Rod == [FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"]
18 Stronghold == [FEN "6k1/1qr1p2p/ppN5/3p1N2/6p1/1P1P2Pp/PP2PP1P/2RK4 w - - 0 1"]
19 Evil Eye == [FEN "8/pr1Pq3/br1kP3/1R2RQ2/5p2/1nPK4/5P2/8 w - - 0 1"]
20 Roundabout +- [FEN "4b3/5p2/2p4p/P1p1PN2/2pn2P1/P2k4/Pr1npKN1/B7 w - - 0 1"]
Study 07 is intentionally missing, it has been shown to be cooked and is currently (still) under repair...
Study 16(II) is the submitted (and not accepted) version of study 16, which I consider more challenging for the engines than the published version.
I know that some of the positions have been the subject of discussions in this forum and I am grateful for your opinions and insights on those threads. Therefore, my questions here are a little more general:
How would you rate the difficulty of the studies for engines, considering your favourite engine and available hardware?
0 Engines solve it immediately
1 Engines are slightly confused
2 Engines are very confused
3 Engines are utterly confused
If you don't mind, would like to update the difficulty iconograms on the site according to these evaluations.
Also, from a human perspective, how entertaining would you consider the studies?
Thank you and have fun !