[Retros] Die Schwalbe Heft 239, oct. 2009

[Steve Dowd]

Hello Joost and list, unless I am missing something the Pfeffer
diagram doesn't have a WK. Is that intentional?

On Tue, Oct 13, 2009 at 7:07 AM, Joost de Heer <joost at sanguis.xs4all.nl> wrote:

> 14241 - Andrei Frolkin

> ksRQqB2/2K1rpp1/PrpRp3/bp1p4/1p6/1S6/1PP1PPP1/S4B2 (14+13)

> +---+---+---+---+---+---+---+---+

> |*K |*S | R | Q |*Q | B |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | K |   |*R |*P |*P |   |

> +---+---+---+---+---+---+---+---+

> | P |*R |*P | R |*P | . |   | . |

> +---+---+---+---+---+---+---+---+

> |*B |*P | . |*P | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   |*P |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . | S | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | P | P | . | P | P | P | . |

> +---+---+---+---+---+---+---+---+

> | S |   | . |   | . | B | . |   |

> +---+---+---+---+---+---+---+---+

> Release the position

>

> 14242 - Andrei Frolkin

> 1ksRBB2/1P1K1rp1/bRrPppp1/Qpppp3/8/8/P1P5/8 (10+13)

> +---+---+---+---+---+---+---+---+

> |   |*K |*S | R | B | B |   | . |

> +---+---+---+---+---+---+---+---+

> | . | P | . | K | . |*R |*P |   |

> +---+---+---+---+---+---+---+---+

> |*B | R |*R | P |*P |*P |*P | . |

> +---+---+---+---+---+---+---+---+

> | Q |*P |*P |*P |*P |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> | P | . | P | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> Release the position

>

> 14243 - Andrei Frolkin

> 1qKRQB2/p2pRPP1/1p1kppp1/1bbrp3/1r1pP3/2P5/1PP5/8 (11+14)

> +---+---+---+---+---+---+---+---+

> |   |*Q | K | R | Q | B |   | . |

> +---+---+---+---+---+---+---+---+

> |*P |   | . |*P | R | P | P |   |

> +---+---+---+---+---+---+---+---+

> |   |*P |   |*K |*P |*P |*P | . |

> +---+---+---+---+---+---+---+---+

> | . |*B |*B |*R |*P |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   |*R |   |*P | P | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | P |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | P | P | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> Last 8 single moves?

>

> 14244 - Dmitri Baibikov

> 8/p3p3/8/6PP/4PPrQ/1P1PRKpp/2PRpbBr/4kb2 (12+10)

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> |*P |   | . |   |*P |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | P | P |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . | P | P |*R | Q |

> +---+---+---+---+---+---+---+---+

> | . | P | . | P | R | K |*P |*P |

> +---+---+---+---+---+---+---+---+

> |   | . | P | R |*P |*B | B |*R |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   |*K |*B | . |   |

> +---+---+---+---+---+---+---+---+

> -10 & #1, Proca retractor

>

> 14245 - Unto Heinonen

> rsb1k3/p1p1pp1p/8/8/8/8/P4PPP/R1BQK1SR (10+9)

> +---+---+---+---+---+---+---+---+

> |*R |*S |*B | . |*K | . |   | . |

> +---+---+---+---+---+---+---+---+

> |*P |   |*P |   |*P |*P | . |*P |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> | P | . |   | . |   | P | P | P |

> +---+---+---+---+---+---+---+---+

> | R |   | B | Q | K |   | S | R |

> +---+---+---+---+---+---+---+---+

> SPG 9.5

>

> 14246 - Alfred Pfeiffer

> qrk2S2/Ppp1p2p/2P3Pr/2Sp2pB/8/4P3/1PP3PP/BRJ3RQ (16+10)

> +---+---+---+---+---+---+---+---+

> |*Q |*R |*K | . |   | S |   | . |

> +---+---+---+---+---+---+---+---+

> | P |*P |*P |   |*P |   | . |*P |

> +---+---+---+---+---+---+---+---+

> |   | . | P | . |   | . | P |*R |

> +---+---+---+---+---+---+---+---+

> | . |   | S |*P | . |   |*P | B |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | P |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | P | P | . |   | . | P | P |

> +---+---+---+---+---+---+---+---+

> | B | R | J |   | . |   | R | Q |

> +---+---+---+---+---+---+---+---+

> #3, Fischer Random Chess

>

> 14247 - Bernd Gräfrath

> rsbqkbsr/ppp2ppp/8/4p3/5P2/8/PPP1S1PP/RSBQ1RK1 (13+15)

> +---+---+---+---+---+---+---+---+

> |*R |*S |*B |*Q |*K |*B |*S |*R |

> +---+---+---+---+---+---+---+---+

> |*P |*P |*P |   | . |*P |*P |*P |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   |*P |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | P |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> | P | P | P | . | S | . | P | P |

> +---+---+---+---+---+---+---+---+

> | R | S | B | Q | . | R | K |   |

> +---+---+---+---+---+---+---+---+

> Proofgame in exactly 7.5 moves, Duellist

>

> 14248 - Ivan Antonov

> rsbqkbsr/p1ppppp1/8/7B/8/2B5/8/1R2K1SR (6+14)

> +---+---+---+---+---+---+---+---+

> |*R |*S |*B |*Q |*K |*B |*S |*R |

> +---+---+---+---+---+---+---+---+

> |*P |   |*P |*P |*P |*P |*P |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . | B |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | B |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . | R | . |   | K |   | S | R |

> +---+---+---+---+---+---+---+---+

> SPG 12.5

>

> 14249 - Werner Keym

> q4b2/ppppp1pp/8/8/8/8/1PPP4/2KR3k (5+10)

> +---+---+---+---+---+---+---+---+

> |*Q | . |   | . |   |*B |   | . |

> +---+---+---+---+---+---+---+---+

> |*P |*P |*P |*P |*P |   |*P |*P |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | P | P | P |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | K | R | . |   | . |*K |

> +---+---+---+---+---+---+---+---+

> How many squares could the pieces now present on the board have visited

> maximally, if none of these pieces visited a square more than once?

> [Wie viele Felder konnten die vorhandenen Steine höchstens betreten,

> wenn jeder dieser Steine kein Feld mehrmals betrat?]

>

> 14250 - Per Grevlund

> bernd ellinghoven zum Geburtstag

> 2r1k3/8/2P5/8/8/2K5/2SP4/8 (4+2)

> +---+---+---+---+---+---+---+---+

> |   | . |*R | . |*K | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . | P | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . |   | . |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | K |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> |   | . | S | P |   | . |   | . |

> +---+---+---+---+---+---+---+---+

> | . |   | . |   | . |   | . |   |

> +---+---+---+---+---+---+---+---+

> ser-#9, how many solutions?

>

> 14251 - Bernd Schwarzkopf

> Illegal cluster with wK, bK, 3 wR. The kings are on same-coloured

> squares, and one rook has only empty neighbouring squares.

> [Illegal Cluster mit wK, bK, 3 wT. Die Könige stehen auf derselben

> Felderfarbe; ein Turm hat nur leere Nachbarfelder.]

>

> 14252 - Stephan Dietrich

> A white knight is placed on a1. On the board are further seven white

> rooks. (8+0)

> a) How many positions like this exist with no piece guarding another?

> b) Generalise for an nxn board with (n-1) rooks (n >= 3)

> [Auf einem Schachbrett steht auf a1 ein weißer Springer. Auf dem

> restlichen Schachbrett stehen 7 weiße Türme.

> a) Wie viele derartige Stellungen gibt es, bei denen keine Figur eine

> andere deckt?

> b) Wie viele Stellungen ergeben sich bei einer Verallgemeinerung der

> Aufgabestellung auf ein nxn Brett (n >= 3) mit wSa1 und n-1 weißen Türmen?]

>

> Duellist: if legally possible, a move must be made with the piece that moved

> previously (the duellist). If not possible, a new duellist must be chosen.

> Take & make: As part of the move, a piece that captures must make one move

> like the captured piece. If this move isn't possible, the capture isn't

> legal. Pawns promote only after their 'make' move, and may not end up on

> their base rank. Checks are orthodox.

> Fischer Random Chess: At the beginning of the game, the pieces are

> (symmetrically) shuffled. The king must be between the rooks, and the

> bishops must be on different square colours. White and black start with the

> same position of the pieces. Kingside castling is done by moving the king to

> g1/g8 and the rook that was east of the king to f1/f8, queenside castling is

> done by moving the king to c1/c8 and the rook that was west of the king to

> d1/d8. [JdH: For the exact FIDE rules:

> http://www.fide.com/fide/handbook?id=125&view=article, section F]

> In 14246, white kingside castling would result in Kc1->g1, Rg1->f1, white

> queenside castling would result in Kc1->c1 (doesn't move), Rb1->d1, and

> black queenside castling would result in Kc8->c8 (doesn't move), Rb8->d8.

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