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| (1) Posted by Hauke Reddmann [Monday, Sep 16, 2024 10:40] |
Check in n moves
Do you know problems with stipulation "White gives a check in n moves"?
(Being mate at the same time may be allowed or not.)
Can Popeye/Olive handle that?
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| (2) Posted by Joost de Heer [Monday, Sep 16, 2024 11:43] |
Yes, there are lots of examples. Both Popeye and Winchloe can solve this (Winchloe even has an option for double check).
Note that WinChloe defines a check as not mate.
See e.g. https://pdb.dieschwalbe.de/P1013874 which is cooked with Popeye but correct with WinChloe.
There are also some examples in BEISPIEL/stip.inp in the Popeye source code.
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| (3) Posted by Hauke Reddmann [Monday, Sep 16, 2024 17:43] |
THX! The example screams for the question: Why not Rb3->b4 and drop the Circe?
But that surely resolves when read in context...
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| (4) Posted by Hauke Reddmann [Monday, Sep 16, 2024 18:06] |
Aaaand here is an original by me (after I discovered replacing # with + in Olive
already does the trick).
You might or might not know that the starting position is a +5 (but cooked;
1.e3,e4,Sc3 and even Sa3 are good).
Of course I tried Chess 960 next. Even the stipuluation +2 works in some positions
(and mind you, as a correct problem). How many such positions exist?
EDIT: Can you find a correct (not dualistic or cooked) +3?
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