MESON Chess Problem Database

Problem Display
PID: 98131 (1n1q1R2/B1p3pb/2B1p2r/1R3nr1/K2b3p/8/1Q6/6k1 w - - 0 1)

Kipping, Cyril Stanley

Problem (Zagreb), 1951

1n1q1R2/B1p3pb/2B1p2r/1R3nr1/K2b3p/8/1Q6/6k1

#2

6 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Qxg2#
    • 1...Rgh5
      • 2.Qg2#
    • 1...Bf2
      • 2.Qxf2#
    • 1...Se3
      • 2.Qf2#
    • 1...Sg3
      • 2.Qg2#
    • 1...Sd6
      • 2.Bxd4#
    • 1...Se7
      • 2.Rxg5#
  • Tries
    • 1.Bxd4+?
      • 1...Kf1
        • 2.Qf2#
      • 1...Se3
        • 2.Bxe3#
        • 2.Qf2#
      • 1...Sxd4
        • 2.Qf2#
      • 1...Qxd4+!
    • 1.Qh2+?
      • 1...Kf1
        • 2.Rb1#
      • 1...Kxh2!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Rb1#
      • 1...Kf1
        • 2.Rb1#
      • 1...Rg2
        • 2.Qxg2#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Se3
        • 2.Qf2#
      • 1...Sg3
        • 2.Qg2#
      • 1...Sd6
        • 2.Bxd4#
      • 1...Se7
        • 2.Rxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::QAR1(A),XR(e)
    • R(e);N_GUARD::QAR1(A)
    • B(b);N_GUARD::QAB1(A),XB(b)
    • S(d);N_SPINB(b),S_CUTB(b)::QAB1(A)
    • S(d);S_CUTR(e)::QAR1(A)
    • S(d);N_GUARD,S_CUTQ(l)::B(E),XB(b)
    • S(d);OGATE::R(C),XR(e)
  • Tries
    • Try
      • B(E);CHECK,XB(b)
      • Vars
        • K(a);P-FLIGHT,P_SPINS(d)::QAR1(A)
        • S(d);XB(E)::QAB1(A)
      • Refutation
        • Q(l);CHECK,XB(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT,P_SPINS(d)::R(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Threat
      • R(C)
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT,P_SPINS(d)::R(C)
      • R(e);N_GUARD::QAR1(A),XR(e)
      • B(b);N_GUARD::QAB1(A),XB(b)
      • S(d);N_SPINB(b),S_CUTB(b)::QAB1(A)
      • S(d);S_CUTR(e)::QAR1(A)
      • S(d);N_GUARD,S_CUTQ(l)::B(E),XB(b)
      • S(d);OGATE::R(C),XR(e)
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