MESON Chess Problem Database

Problem Display
PID: 168148 (6n1/Q7/b1B1Pp1p/3R3K/4k3/8/3Pr3/4R3 w - - 0 1)

Slater, George James

Bow Bells, 1876

6n1/Q7/b1B1Pp1p/3R3K/4k3/8/3Pr3/4R3

#2

7 + 6

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qxe3#
  • Tries
    • 1.Rxe2+?
      • 1...Kf3
        • 2.Qf2#
        • 2.Qe3#
      • 1...Kf4
        • 2.Qf2#
        • 2.Qe3#
      • 1...Bxe2+!
    • 1.Qg1?
      • threat
        • 2.Qg4#
      • 1...Kf3
        • 2.Rf5#
      • 1...Kf4
        • 2.Qg4#
      • 1...f5!
    • 1.Qf2?
      • threat
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
      • 1...Se7!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qg4#
      • 1...Kf3
        • 2.Rf5#
      • 1...Kf4
        • 2.Qg4#
      • 1...f5
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::QAR1(G),XR(a)
  • Tries
    • Try
      • R(A);CHECK,XR(a)
      • Refutation
        • B(c);CHECK,XR(A)
    • Try
      • Q(G);
      • Threat
        • QAR2(G)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::B(E)+R(C),DCHECK
        • K(b);N_SPINR(a),P-FLIGHT::QAR1(G)
      • Refutation
        • P(d);
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • P(d);::QAB1(G),XP(d)
      • Refutation
        • S(f);
  • Actual
    • Q(G);
    • Threat
      • QAR2(G)
    • Vars
      • K(b);N_SPINR(a),S_FLIGHT::B(E)+R(C),DCHECK
      • K(b);N_SPINR(a),P-FLIGHT::QAR1(G)
      • P(d);SBLOCK::B(E)+R(C),DCHECK
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