MESON Chess Problem Database

Problem Display
PID: 76394 (1Q6/8/1N6/8/1N6/1k6/8/2K5 w - - 0 1)

Butwillo, Brother

The Tablet, 1927

(First published on Sat Nov 19 1927)

1Q6/8/1N6/8/1N6/1k6/8/2K5

#2

4 + 1

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qh2?
      • threat
        • 2.Qb2#
      • 1...Ka3
        • 2.Qb2#
      • 1...Kc3
        • 2.Qb2#
      • 1...Kxb4!
    • 1.Qf4?
      • 1...Kc3
        • 2.Qc4#
      • 1...Ka3!
    • 1.Qe5?
      • threat
        • 2.Qb2#
      • 1...Ka3
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kxb4!
    • 1.Qc7?
      • 1...Ka3
        • 2.Qc3#
      • 1...Kxb4!
    • 1.Qc8?
      • 1...Ka3
        • 2.Qc3#
      • 1...Kxb4!
    • 1.Qg8+?
      • 1...Ka3
        • 2.Sc2#
      • 1...Kc3
        • 2.Qc4#
      • 1...Kxb4!
    • 1.Qh8?
      • threat
        • 2.Qb2#
      • 1...Ka3
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kxb4!
  • Keys
    • 1.Sc2!
      • 1...Ka2
        • 2.Qg8#
      • 1...Kc3
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(B)
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::QAB(D)
      • K(a);P-FLIGHT::QAR(D)
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