MESON Chess Problem Database

Problem Display
PID: 146149 (1Q6/8/8/8/4R3/7K/8/3N1nbk w - - 0 1)

Lipton, Michael

The Problemist, 1953

1Q6/8/8/8/4R3/7K/8/3N1nbk

#2

4 + 3

14867 BCPS Library 2012

SOLUTION

  • SOUND
  • Keys
    • 1.Re1!
      • threat
        • 2.Qb7#
        • 2.Qa8#
      • 1...Bf2
        • 2.Qh2#
      • 1...Bh2
        • 2.Qxh2#
      • 1...Be3
        • 2.Qh2#
      • 1...Bd4
        • 2.Qh2#
      • 1...Bc5
        • 2.Qh2#
      • 1...Bb6
        • 2.Qh2#
      • 1...Ba7
        • 2.Qh2#
      • 1...Sd2
        • 2.Sf2#
        • 2.Qh2#
      • 1...Sh2
        • 2.Sf2#
        • 2.Qxh2#
      • 1...Se3
        • 2.Sf2#
        • 2.Qh2#
      • 1...Sg3
        • 2.Sf2#

This is a version of 77643

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(C);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);N_GUARD,P_SPINS(a)::QAR1(D)
      • B(b);N_GUARD,P_SPINS(a)::QAR1(D),XB(b)
      • S(a);P_SPINB(b)::S(A)
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