MESON Chess Problem Database

Problem Display
PID: 186670 (3b1N2/7Q/N2k1PK1/8/4P3/3b2n1/4R1B1/3R2B1 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1960

3b1N2/7Q/N2k1PK1/8/4P3/3b2n1/4R1B1/3R2B1

#2

10 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qd7#
    • 1...Bxf6
      • 2.Qc7#
    • 1...Bc7
      • 2.Qxc7#
    • 1...Sf5
      • 2.e5#
  • Tries
    • 1.Bc5+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Ke5!
    • 1.Rxd3+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Ke5!
    • 1.Qg8?
      • threat
        • 2.Qd5#
        • 2.Qe6#
      • 1...Kc6
        • 2.Qd5#
      • 1...Bxf6
        • 2.Qe6#
      • 1...Sxe4
        • 2.Qe6#
      • 1...Ke5!
    • 1.Qe7+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Bxe7!
    • 1.Qf7?
      • threat
        • 2.Qd5#
        • 2.Qe6#
      • 1...Kc6
        • 2.Qd5#
        • 2.Qd7#
      • 1...Bxf6
        • 2.Qe6#
        • 2.Qxf6#
        • 2.Qc7#
      • 1...Sxe4
        • 2.Qe6#
      • 1...Ke5!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qe6#
      • 1...Ke5
        • 2.Qxg3#
      • 1...Kc6
        • 2.Qd7#
      • 1...Sf5
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(c);N_SPINB(a),P-FLIGHT::QAB1(I)
    • B(d);N_GUARD,XP(G)::QAB1(I)
    • B(d);N_GUARD::QAB1(I),XB(d)
    • S(b);N_PINP(E)::P(E)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(c);N_SPINB(a),P-FLIGHT::QAB1(I)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • R(A);CHECK,N_SPINP(E),XB(a)
      • Vars
        • K(c);P-FLIGHT::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINB(a),P-FLIGHT::QAB1(I)
        • B(d);XP(G)::QAR1(I)
        • S(b);XP(E)::QAR1(I)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);N_SPINB(a),P-FLIGHT::QAB1(I)
      • Refutation
        • B(d);XQ(I)
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);XP(E)::QAR1(I)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
  • Actual
    • Q(I);
    • Threat
      • QAR1(I)
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::QAB(I),XS(b)
      • K(c);N_SPINB(a),P-FLIGHT::QAB1(I)
      • S(b);N_PINP(E)::P(E)
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