MESON Chess Problem Database

Problem Display
PID: 145116 (6b1/2K5/4Np2/1PPk4/5P2/1N1Pp3/Q3r3/2n1r3 w - - 0 1)

Sturgess, RSM

Wigan, TK

Illustrated London News, 1925

(First published on Sat Aug 15 1925)

6b1/2K5/4Np2/1PPk4/5P2/1N1Pp3/Q3r3/2n1r3

#2

8 + 7

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.Qa8#
    • 1...Sxb3
      • 2.Qxb3#
    • 1...Sxd3
      • 2.Sd2#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Sc7#
      • 1...Bxe6
        • 2.Qa8#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Sxd3
        • 2.Sd2#
      • 1...Kxe6!
    • 1.Kd7?
      • threat
        • 2.Sc7#
        • 2.Qa8#
      • 1...Rxa2
        • 2.Sc7#
      • 1...Sxa2
        • 2.Sc7#
      • 1...Sxb3
        • 2.Qxb3#
        • 2.Qa8#
      • 1...Sxd3
        • 2.Sd2#
      • 1...Bxe6+!
    • 1.Kb8?
      • threat
        • 2.Sc7#
      • 1...Bxe6
        • 2.Qa8#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Sxd3
        • 2.Sd2#
      • 1...Kxe6!
    • 1.Sd2+?
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sxa2!
  • Keys
    • 1.Kd8!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Sd4#
      • 1...Bxe6
        • 2.Qa8#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Sxd3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(g);SBLOCK,XS(G)::QAB(A)
    • S(a);OGATE,P_SPINS(a),XS(B)::QAB(A),XS(a)
    • S(a);N_GUARD,XP(C)::QAB(A)+S(B)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • S(G)
      • Vars
        • B(g);SBLOCK,XS(G)::QAB(A)
        • S(a);OGATE,P_SPINS(a),XS(B)::QAB(A),XS(a)
        • S(a);N_GUARD,XP(C)::QAB(A)+S(B)
      • Refutation
        • K(e);S_FLIGHT,XS(G)
    • Try
      • K(H);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XQ(A)::S(G)
        • S(a);XQ(A)::S(G)
        • S(a);N_GUARD,XP(C)::QAB(A)+S(B)
      • Refutation
        • B(g);CHECK,XS(G)
    • Try
      • K(H);S_FLIGHT
      • Threat
        • S(G)
      • Vars
        • B(g);SBLOCK,XS(G)::QAB(A)
        • S(a);OGATE,P_SPINS(a),XS(B)::QAB(A),XS(a)
        • S(a);N_GUARD,XP(C)::QAB(A)+S(B)
      • Refutation
        • K(e);S_FLIGHT,XS(G)
    • Try
      • S(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB(A),XS(a)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • S(G)
    • Vars
      • K(e);S_FLIGHT,XS(G)::QAB(A)+S(B),DCHECK
      • B(g);SBLOCK,XS(G)::QAB(A)
      • S(a);OGATE,P_SPINS(a),XS(B)::QAB(A),XS(a)
      • S(a);N_GUARD,XP(C)::QAB(A)+S(B)
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