# Die Schwalbe

No. 234, December 2008

This issue starts with a long article by Günther Weeth about (de-)legalizing moves in anticirce proca retractors. One original in this article:

N234a -

Die Schwalbe 234, December 2008

8+8. -6 & s#1, Proca, Anticirce

[7B/7p/3n3k/6P1/b4pK1/3pp3/2PP1bNP/7R]

Solution

And there's an article about the Schwalbe meeting in Oestrich-Winkel (4 Oct 2008). There was a composition tourney with theme "At least one fairy battery with rear piece king, knight or pawn is fired".

Battery: "Piece X (front piece) moves, which results in a check by piece Y (rear piece)".

N234b -

Die Schwalbe 234, December 2008

Hon. mention Oestrich-Winkel 2008

4+7. -5 & #1, Proca, Anticirce

[n1n5/5N1N/4k3/8/8/4p1p1/3r2K1/1Q2b3]

Solution

And the usual stuff (13940 may be misprinted, since white is in check in diagram B):

13940 -

Die Schwalbe 234, December 2008

 A: 11+16 B: 11+12

ser-A->B 320

A: [nn1b4/p3P3/2PrRr2/nnrkBRP1/1Kb2q2/P2PrP2/1r6/1Bn3b1]

B: [nn6/4P3/2PrRr2/KBrk1RP1/P1bB1q2/3PrP2/1r6/2n3b1]

Solution

13941 -

Die Schwalbe 234, December 2008

14+13. #1 (Who?)

[k4b1n/pppRpp1b/3p2p1/5pK1/5P1N/3P1P1B/PPP2PPB/4Nr2]

Solution

13942 -

Die Schwalbe 234, December 2008

14+14. Proof game in 20.0 moves

[rn4n1/p2Q2pp/p1p1p1k1/2p1Pp2/8/b1PB1b2/P1P2BPP/RN2K1NR]

Solution

13943 -

Die Schwalbe 234, December 2008

12+11. Proof game in 10.5 moves (Losing chess)

[r1b2bnr/pp4pp/8/4n3/4p3/8/PPPPPP2/RNBQR1N1]

Solution

13944 -

Die Schwalbe 234, December 2008

15+13. Proof game in 9.0 moves (Bichromatic chess). a) diagram b) Qd3->d6

[2b1kbnr/1pp1pppp/8/8/8/2Pq1Q2/PP2PPPP/RNBrKBNR]

Solution

13945 -

Die Schwalbe 234, December 2008

14+8. Proof game in 16.0 moves (Mirror-anticirce)

[RNBQKBNR/1pp2ppk/7n/3p3n/8/1P3P2/P1PP3P/8]

Solution

13946 -

Die Schwalbe 234, December 2008

Dedicated to Jürgen Bischoff (+ 4.6.08)

9+8. -3 & s#1, Proca, Anticirce

[1q2R3/BP5r/k4p2/p7/2P1B3/2PKp3/p3p3/4N2R]

Solution

13947 -

Die Schwalbe 234, December 2008

Which exact proof game in monochromatic chess ends with 5. Qc6-e8#?

Solution

13948 -

Die Schwalbe 234, December 2008

Which exact proof game in monochromatic chess ends with 5. .. Be7xPd6#?

Solution

13949 -

Die Schwalbe 234, December 2008

Find an illegal cluster with wKRPPPP/bK. In one of the sub-positions that arise when a piece is removed, the last 2 single moves are exactly determined.

Solution

13950 -

Die Schwalbe 234, December 2008

Find an illegal cluster with both kings and a white piece, in which the sum of the distances of the kings to their original squares is second-largest..

Solution

Fairy definitions and examples:

Mirror-anticirce: The capturing piece is reborn on the anticirce rebirth square of the opposite colour (e.g., in anticirce, a white bishop capturing on d3 is reborn on f1, in Mirror-anticirce it is reborn on c8).

Bichromatic chess: The departure- and arrival square of a move must be on a differently coloured square. E.g. bishops can't move, pawn captures and castling are illegal. Checks are 'fairy', e.g. wRd8 bKf8 isn't check, but white can deliver check with 1. Ra8.

Monochromatic chess: The departure- and arrival square of a move must be on a same colored square. Checks are 'fairy'. E.g. knights can't move, long castling is illegal, and Ra1 can never give check to the black king.