MESON Chess Problem Database

Problem Display
PID: 183165 (5K1k/5Q1B/6r1/8/8/8/8/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Source?, 1907

5K1k/5Q1B/6r1/8/8/8/8/8

#2

3 + 2

6490 yacpdb 2018
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Qg8#
      • 2.Qg7#
    • 1...Rb6
      • 2.Qg8#
      • 2.Qg7#
    • 1...Rc6
      • 2.Qg8#
      • 2.Qg7#
    • 1...Rd6
      • 2.Qg8#
      • 2.Qg7#
    • 1...Re6
      • 2.Qg8#
      • 2.Qg7#
    • 1...Rh6
      • 2.Qg8#
      • 2.Qg7#
    • 1...Rg7
      • 2.Qxg7#
    • 1...Rg8+
      • 2.Qxg8#
  • Keys
    • 1.Bg8!
      • threat
        • 2.Qh7#
      • 1...Rxg8+
        • 2.Qxg8#
      • 1...Rf6
        • 2.Qxf6#
      • 1...Rh6
        • 2.Qg7#
      • 1...Rg7
        • 2.Qxg7#

This anticipates 23204(1996)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::QAB1(A),XR(a)
    • R(a);CHECK,N_GUARD::QAR1(A),XR(a)
  • Actual
    • B(B);
    • Threat
      • QAR1(A)
    • Vars
      • R(a);CHECK,OGATE,XB(B)::QAR1(A),XR(a)
      • R(a);N_GUARD,P_PINQ(A)::QAB(A),XR(a)
      • R(a);N_GUARD::QAB1(A)
      • R(a);N_GUARD::QAB1(A),XR(a)
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