MESON Chess Problem Database

Problem Display
PID: 51065 (7B/6n1/4p3/5p1R/2K2k2/5P1R/3N2BN/5Q2 w - - 0 1)

Butler, Henry William

Burnley Express, 1880

7B/6n1/4p3/5p1R/2K2k2/5P1R/3N2BN/5Q2

#2

9 + 4

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sb1?
      • 1...Ke3
        • 2.f4#
      • 1...Sxh5
        • 2.Qc1#
      • 1...Se8
        • 2.Qc1#
      • 1...e5
        • 2.Qc1#
      • 1...Ke5!
    • 1.Sb3?
      • 1...Ke3
        • 2.f4#
      • 1...Sxh5
        • 2.Qc1#
      • 1...Se8
        • 2.Qc1#
      • 1...e5
        • 2.Qc1#
      • 1...Ke5!
    • 1.Bxg7?
      • 1...e5
        • 2.Bh6#
      • 1...Ke3!
    • 1.Qf2?
      • threat
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...e5
        • 2.R3h4#
      • 1...Sxh5!
  • Keys
    • 1.Se4!
      • 1...Ke3
        • 2.f4#
      • 1...Ke5
        • 2.f4#
      • 1...Sxh5
        • 2.Qc1#
      • 1...fxe4
        • 2.fxe4#
      • 1...Se8
        • 2.Qc1#
      • 1...e5
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);OGATE,S_FLIGHT::R(F)+P(E)
        • S(d);XR(H)::QAB(A)
        • S(d);::QAB(A)
        • P(c);SBLOCK::QAB(A)
      • Refutation
        • K(a);P_SPINP(b),P_SPINS(d),S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);OGATE,S_FLIGHT::R(F)+P(E)
        • S(d);XR(H)::QAB(A)
        • S(d);::QAB(A)
        • P(c);SBLOCK::QAB(A)
      • Refutation
        • K(a);P_SPINP(b),P_SPINS(d),S_FLIGHT
    • Try
      • B(I);XS(d)
      • Vars
        • P(c);SBLOCK::B(I)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);P_SPINP(b),P_SPINS(d),S_FLIGHT::QAB1(A)
        • P(c);SBLOCK::R(F)
      • Refutation
        • S(d);XR(H)
  • Actual
    • S(B);
    • Vars
      • K(a);OGATE,S_FLIGHT::R(F)+P(E)
      • K(a);OGATE,P_SPINP(b),P_SPINS(d),S_FLIGHT::P(E)
      • S(d);XR(H)::QAB(A)
      • P(b);OGATE,XS(B)::QAR(A)+P(E),XP(b)
      • S(d);::QAB(A)
      • P(c);SBLOCK::QAB(A)
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