MESON Chess Problem Database

Problem Display
PID: 76741 (6K1/4p1p1/5b1k/4BR1B/6P1/6P1/8/8 w - - 0 1)

Butwillo, Brother

The Tablet, 1944

(First published on Sat Aug 26 1944)

6K1/4p1p1/5b1k/4BR1B/6P1/6P1/8/8

#2

6 + 4

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Bxg7#
    • 1...Bg5
      • 2.Bxg7#
  • Tries
    • 1.Bf4+?
      • 1...Bg5
        • 2.Bxg5#
      • 1...g5!
    • 1.Rxf6+?
      • 1...Kg5
        • 2.Rg6#
      • 1...gxf6
        • 2.Bf4#
      • 1...g6
        • 2.Bf4#
        • 2.Rxg6#
      • 1...exf6!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Rg6#
      • 1...Kxg5
        • 2.Bf4#
      • 1...Bxg5
        • 2.Bxg7#
      • 1...g6
        • 2.Rxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(a);OGATE::B(C),XP(d)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::B(C),XB(a)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • R(D);CHECK,XB(a)
      • Vars
        • K(b);S_FLIGHT::R1(D)
        • P(d);XR(D)::B(C)
      • Refutation
        • P(c);XR(D)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(D)::B(C)
      • B(a);OGATE,SBLOCK,XR(D)::B(C),XP(d)
      • P(d);::R1(D),XP(d)
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