MESON Chess Problem Database

Problem Display
PID: 68435 (6b1/8/K7/3k4/1bRP4/4pp1B/2Q5/B2R4 w - - 0 1)

Slater, George James

English Mechanic and World of Science, 1888

(First published on Fri Oct 26 1888)

6b1/8/K7/3k4/1bRP4/4pp1B/2Q5/B2R4

#2

7 + 5

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rc7?
      • threat
        • 2.Qc6#
      • 1...Kd6
        • 2.Rd7#
        • 2.Qc6#
      • 1...Bc5
        • 2.dxc5#
      • 1...Bc3!
    • 1.Qe4+?
      • 1...Kxe4
        • 2.d5#
      • 1...Kd6
        • 2.Rc6#
        • 2.Qe5#
      • 1...Kxc4!
    • 1.Qf5+?
      • 1...Kd6
        • 2.Qd7#
        • 2.Qe5#
      • 1...Kxc4!
    • 1.Qg6?
      • threat
        • 2.Qc6#
      • 1...Kxc4
        • 2.Qxg8#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Bd6!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc6#
      • 1...Kxc4
        • 2.Qa2#
      • 1...Ke4
        • 2.d5#
      • 1...Kd6
        • 2.Qd7#
      • 1...Bc5
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB1(C)
      • Vars
        • B(c);OGATE::R(B)+P(F),XB(c)
      • Refutation
        • B(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT,XQ(C)::R(E)+P(F)
      • Refutation
        • K(d);S_FLIGHT,XR(E)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(d);S_FLIGHT,XR(E)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(d);S_FLIGHT,XR(E)::QAB(C),XB(e)
        • B(e);N_GUARD::QAB1(C),XB(e)
        • B(c);N_GUARD::R1(E),XB(c)
      • Refutation
        • B(c);
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);OGATEB,P_SPINB(c),S_FLIGHT,XR(E)::QAB(C)
      • K(d);OGATE,S_FLIGHT::R(E)+P(F)
      • K(d);P-FLIGHT::QAR1(C)
      • B(c);OGATE::R(B)+P(F),XB(c)
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