Joost De Heer
Should be a s=5, not s=8. And one (short) variation is missing: 2... c3 3. Sc4 bxc4 4. Bb4 Kb4=
On No.1745 (KK)
Oldest composition I can find with Madrasi/Isardam + MarsCirce is a h==2 by Roméo Bédoni from 2001.
On No.1739 (MR)
A Super-AUW is promotion to all orthodox and at least one fairy piece. This is an AUW+1.
On No.1743 (KB)
Popeye uses the orthodox observation lines for Isardam I think, not the Mars-Circe lines. Compare with a composition I published…
On No.1739 (MR)
The statement about fairy pieces being promoted pawns is only applicable to compositions with retro content and fairy pieces in…
On No.1731 (AG&DP)
Another way to look at this: In an orthodox composition, retro content can be applied, e.g. to determine the legality…
On No.1731 (AG&DP)
Easy test: Does the past of the diagram play a role in the solution? Yes - Retro is relevantNo -…
On No.1731 (AG&DP)
Walter, We've had this discussion before. Unless explicitly stipulated (e.g. 'last N moves' or 'proofgame'), for fairy compositions the de…
On No.1731 (AG&DP)
Codex footnote 18: 18. Retroanalysis does not apply to illegal positions, except for the purpose of determining that they are…
On No.1731 (AG&DP)
The moose are missing in the diagram
On No.1735 (DN)