Joost De Heer
The variants after BPf5/BPe6 are missing the departure square, since Sg6 is ambiguous. @Seetharaman: e3 must be BP as well…
On No.1675 (RK)
Baldur Kozdon, Springaren 1982: wKd5, bKf4, bPh6, h=14 Whitemax, Blackmax This can be extended: wKf3, bKh2, bPd6, bPh6 h=16, Whitemax,…
On No.1668 (KC)
Nice 'get out of the way' implementation.
On No.1672 (MP)
Is a magic piece a fairy piece? In other words, is https://pdb.dieschwalbe.de/P1315393 thematic?
On JT PIV-90
Null moves are not allowed. Definition has a small error for the rebirth square of a pawn (capture is not…
On No.1652 (AG&DP)
This is the diagram: https://www.joostdeheer.nl/schaken/cheylan.png #2 (d1=Rose, g8/h8=Leo) 1.LEç4! [2.Fd4‡] 1…b1=RO 2.b8=RO‡ 1…b1=LE 2.b8=LE‡ (1…b1=D 2.LEf1‡ 1…R×g4 2.Fé4‡ 1…é×f2 2.b8=LE‡…
On JT PIV-90
Partial testing for at-home positions is not very useful IMO. Almost any piece could've moved away and back, so all…
On No.1648 (SKB&VN)
The text on the main page is wrong (PG 3.5), should be PG 13.5. 5th white move is also wrong…
On No.1648 (SKB&VN)
And another detail: b7 isn't a flight square for the black king because of Kxb3.
On No.1645 (GT)
Popeye is probably the worst tool for proofgames, unless there are a lot of captures. Jacobi, Natch or Euclide are…
On No.1643 (VN)