MESON Chess Problem Database

Problem Display
PID: 204615 (3B4/8/7n/4Q2R/6kp/8/8/3K4 w - - 0 1)

Barclay, William L

Deutsche Schachzeitung, 1986

3B4/8/7n/4Q2R/6kp/8/8/3K4

#2

4 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bxh4?
      • 1...Kh3
        • 2.Qg3#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sf7
        • 2.Qf5#
      • 1...Sg8
        • 2.Qf5#
      • 1...Kf3!
    • 1.Qg5+?
      • 1...Kh3
        • 2.Rxh4#
      • 1...Kf3!
  • Keys
    • 1.Bc7!
      • 1...Kf3
        • 2.Qe2#
      • 1...Kh3
        • 2.Qg3#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sf7
        • 2.Qf5#
      • 1...Sg8
        • 2.Qf5#
      • 1...h3
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
        • S(c);N_GUARD::QAB1(B),XS(c)
        • S(c);N_GUARD::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(C),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P_SPINP(b),S_FLIGHT::QAR1(B)
      • S(c);N_GUARD::QAB1(B),XS(c)
      • S(c);N_GUARD::QAB1(B)
      • P(b);::QAB(B)
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