MESON Chess Problem Database

Problem Display
PID: 147251 (2bR4/2pn4/2pq1P2/R5QK/1p1k1p2/8/1N1P2B1/8 w - - 0 1)

Wilson, Francis Vaux

Christian Science Monitor, 1954

(First published on Sat Jun 19 1954)

2bR4/2pn4/2pq1P2/R5QK/1p1k1p2/8/1N1P2B1/8

#2

8 + 8

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qf8
      • 2.Qxf4#
      • 2.Qe5#
    • 1...Qe6
      • 2.Qc5#
    • 1...Qxf6
      • 2.Qxf6#
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Se5
      • 2.Qxf4#
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qxf4#
      • 2.Qc5#
      • 2.Qe5#
    • 1...Sxf6+
      • 2.Qxf6#
    • 1...Sb8
      • 2.Qxf4#
      • 2.Qc5#
      • 2.Qe5#
    • 1...Sf8
      • 2.Qxf4#
      • 2.Qc5#
      • 2.Qe5#
    • 1...f3
      • 2.Qe3#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sxf6+
        • 2.Qxf6#
      • 1...Qe7
        • 2.Qd3#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe6
        • 2.Qd3#
        • 2.Qc5#
      • 1...Ba6
        • 2.Qe4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Se5
        • 2.Qe4#
        • 2.Qxf4#
        • 2.Qxe5#
      • 1...f3
        • 2.Qd3#
      • 1...c5
        • 2.Qe4#
      • 1...Qd5!
  • Keys
    • 1.Bxc6!
      • threat
        • 2.Qg1#
      • 1...Sxf6+
        • 2.Qxf6#
      • 1...Qxc6
        • 2.Qe5#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qe7
        • 2.Qd5#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe6
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...f3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(e);N_GUARD,P_PINQ(E),P_SPINS(g)::QAB1(E),XQ(e)
    • Q(e);N_GUARD,P_SPINS(g)::QAB1(E)
    • S(g);N_GUARD,P_SPINQ(e)::QAB1(E),XS(g)
    • S(g);CHECK,OGATE,P_SPINQ(e),XP(G)::QAB(E),XS(g)
    • P(c);OGATE::QAB1(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);CHECK,OGATE,P_SPINQ(e),XP(G)::QAB(E),XS(g)
        • Q(e);P_SPINS(g)::QAR1(E)
        • Q(e);N_GUARD,P_PINQ(E),P_SPINS(g)::QAB1(E),XQ(e)
        • B(h);::QAR1(E)
        • S(g);N_GUARD,P_SPINQ(e)::QAB1(E),XS(g)
        • P(c);::QAR1(E)
        • P(d);::QAR1(E)
      • Refutation
        • Q(e);P_PINQ(E)
  • Actual
    • B(C);XP(d)
    • Threat
      • QAB(E)
    • Vars
      • S(g);CHECK,OGATE,P_SPINQ(e),XP(G)::QAB(E),XS(g)
      • Q(e);N_GUARD,P_SPINS(g),XB(C)::QAB1(E)
      • Q(e);N_GUARD,P_PINQ(E)::QAR1(E),XQ(e)
      • Q(e);N_GUARD,P_SPINS(g)::QAR1(E)
      • Q(e);N_GUARD,P_PINQ(E),P_SPINS(g)::QAB1(E),XQ(e)
      • Q(e);N_GUARD,P_SPINS(g)::QAB1(E)
      • S(g);N_GUARD,P_SPINQ(e)::QAB1(E),XS(g)
      • P(c);OGATE::QAB1(E)
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