Die Schwalbe

No. 238, August 2009

14182c -

Die Schwalbe 238, August 2009

(The version printed in the magazine is an incorrect version. The author had sent the correction before publication, but due to an error of the editor, the incorrect version was printed. This is the correct version.)

13+13. Add a black knight and another black officer, one of them on h6, and release the position.

[4NBBk/1pP1PRRN/p1pppKP1/P3Ppp1/6b1/5nr1/6P1/q7]

Solution

14183 -

Die Schwalbe 238, August 2009

10+9. -1 & #1

[4N3/1p1p1p1p/3p1p2/3PkP2/4P3/2P1K1P1/1Pp1P1pP/8]

Solution

14184 -

Die Schwalbe 238, August 2009

15+16. SPG 25.5

[6n1/ppp1pp1p/3p1r1p/b2B2q1/PP2P1n1/rbB2k2/RRPPNP1P/1N1Q3K]

Solution

14185 -

Die Schwalbe 238, August 2009

(This problem was later found to be cooked)

6+5. Black -1 & h#2 (Maximum, Ultrapatrol, Kamikaze)

[BQ3R2/3K4/3N2q1/4P3/8/b7/5rbk/8]

Solution

14186 -

Die Schwalbe 238, August 2009

(This problem was later found to be cooked)

4+11. -10 & #1 (Proca, Anticirce Calvet)

[b5k1/6r1/1p4p1/2P1R3/1p1ppp1n/7p/6K1/5B2]

Solution

14187c -

Die Schwalbe 238, August 2009

(Diagram fixed. In the printed issue of Die Schwalbe there was a Ng8 instead of a Nh5)

15+15. a) Release b) Proofgame in 5.0 (Supercirce)

[rnbq1r1k/ppppppp1/6p1/7n/8/8/PPPPPPP1/RNBQKBNR]

Solution

14188 -

Die Schwalbe 238, August 2009

12+15. SPG 7.5 (Losing chess)

[rn1qkbnr/p1pppppp/8/8/8/PPN5/3PPPbP/B3KBNR]

Solution

14189 -

Die Schwalbe 238, August 2009

13+11. SPG 10.5 (Duellist)

[1rN1kbnr/p3pppp/8/2p5/8/7P/1PP1NPP1/R1BQKB1R]

Solution

14190 -

Die Schwalbe 238, August 2009

Inspired by A.C. Jobim

Dedicated to Enzo Minerva and the Rio 2009 meeting

15+15. Shortest proof game in 19.0 moves (Circe)

[k5n1/pppp1ppp/bRn5/2bP4/q1B5/1NrP1N1Q/PPPB1PP1/R4r1K]

Solution

14191 -

Die Schwalbe 238, August 2009

Place one white bishop and two white knights on an empty board so they have exactly 28 move possibilities. How many solutions?

[Original text: Auf einem Schachbrett stehen ein wei?#376;er Läufer und zwei wei?#376;e Springer (3+0). Wie viele solcher Stellungen gibt es, bei denen Wei?#376; genau 28 Zugmöglichkeiten hat?)

Solution

14192 -

Die Schwalbe 238, August 2009

Place the seven white officers on an empty board. The bishops are on a1 and h1, the rooks and the queen on a square on the first row, and the knights on random squares. White has exactly 64 move possibilities. How many solutions?

(Original text: Auf einem Schachbrett stehen die 7 wei?#376;en Offiziere. Die beiden Läufer stehen auf den Feldern a1 und h1, die Dame und die beide Türme stehen auf beliebigen Feldern der ersten Reihe, die beiden Springer stehen auf beliebigen Feldern des Schachbrettes (7+0). Wie viele solcher Stellungen gibt es, bei denen Wei?#376; genau 64 Zugmöglichkeiten hat?)

Fairy conditions:

Maximum: Black must play the geometrically longest legal move. Distance is measured between the centers of the start- and arrival square.

Ultrapatrol: A piece has only observation powers, no move possibilities (including capture and giving check) unless it's observed by a piece of the same side.

Kamikaze: When a capture occurs, both the captured and the capturing piece disappear

Supercirce: A captured piece can be reborn on any empty square or not at all

Losing chess: Kings are non-royal, captures are mandatory.

Duellist: If legal, a player must make its next move with the same piece with which he made the last move.