MESON Chess Problem Database

Problem Display
PID: 76803 (8/1K2R3/2B5/2k5/3b4/2p1Q3/1B6/8 w - - 0 1)

Butwillo, Brother

The Tablet, 1945

(First published on Sat Sep 15 1945)

8/1K2R3/2B5/2k5/3b4/2p1Q3/1B6/8

#2

5 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Qxd4#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Ba3#
      • 1...Kb4
        • 2.Qb5#
      • 1...Kd6
        • 2.Ba3#
      • 1...cxb2!
    • 1.Qe5+?
      • 1...Kb4
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb5#
      • 1...Bxe5!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qxd4#
      • 1...Kb4
        • 2.Qxc3#
      • 1...Kc4
        • 2.Qxc3#
      • 1...Kd6
        • 2.Qxd4#
      • 1...Bxe3
        • 2.Ba3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(a);::QAB1(B),XB(b)
  • Tries
    • Try
      • Q(B);N_PINB(b)
      • Threat
        • B(A)
      • Vars
        • K(c);S_FLIGHT::QAR1(B)
        • K(c);P_SPINB(b),S_FLIGHT::B(A)
      • Refutation
        • P(a);XB(A)
    • Try
      • Q(B);CHECK,N_PINB(b)
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(B)
        • K(c);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • B(b);XQ(B)
  • Actual
    • R(E);
    • Threat
      • QAB1(B),XB(b)
    • Vars
      • K(c);S_FLIGHT::QAB1(B),XP(a)
      • K(c);P-FLIGHT::QAR1(B),XP(a)
      • K(c);N_SPINB(b),S_FLIGHT::QAR2(B),XB(b)
      • B(b);N_SPINB(b),XQ(B)::B(A)
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