MESON Chess Problem Database

Problem Display
PID: 18725 (1bR5/2pQ4/8/K1k5/2b5/8/8/8 w - - 0 1)

Asplund, Per Ivan Rune

Tidskrift for Schack, 1957

1bR5/2pQ4/8/K1k5/2b5/8/8/8

#2

3 + 4

2012 Miniature Chess Problems from Many Countries 1981
2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ba7
      • 2.Rxc7#
    • 1...c6
      • 2.Rxc6#
  • Keys
    • 1.Rd8!
      • 1...Bf1
        • 2.Qd5#
      • 1...Ba2
        • 2.Qb5#
      • 1...Be2
        • 2.Qd5#
      • 1...Bb3
        • 2.Qb5#
      • 1...Bd3
        • 2.Qd5#
      • 1...Bb5
        • 2.Qxb5#
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Ba6
        • 2.Qd5#
      • 1...Be6
        • 2.Qb5#
      • 1...Bf7
        • 2.Qb5#
      • 1...Bg8
        • 2.Qb5#
      • 1...Ba7
        • 2.Qxc7#
      • 1...c6
        • 2.Qd4#

This anticipates 920(1993)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(d);N_GUARD::R(C),XP(c)
    • P(c);OGATE::R1(C),XP(c)
  • Actual
    • R(C);N_PINP(c)
    • Vars
      • B(a);N_GUARD::QAR1(B)
      • B(a);N_GUARD::QAR1(B),XB(a)
      • B(d);N_GUARD::QAR2(B),XP(c)
      • P(c);SBLOCK::QAB1(B)
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