MESON Chess Problem Database

Problem Display
PID: 17317 (1N6/8/5K2/4R3/3k4/1Q6/5P2/2r5 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1946

1N6/8/5K2/4R3/3k4/1Q6/5P2/2r5

#2

5 + 2

5454 Near Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sc6#
    • 1...Rb1
      • 2.Sc6#
    • 1...Rd1
      • 2.Sc6#
    • 1...Re1
      • 2.Sc6#
    • 1...Rf1
      • 2.Sc6#
    • 1...Rg1
      • 2.Sc6#
    • 1...Rh1
      • 2.Sc6#
    • 1...Rc3
      • 2.Qd5#
    • 1...Rc4
      • 2.Qe3#
    • 1...Rc6+
      • 2.Sxc6#
  • Tries
    • 1.Kf5?
      • threat
        • 2.Rd5#
      • 1...Rc4
        • 2.Qe3#
      • 1...Rc5!
    • 1.Qb4+?
      • 1...Rc4
        • 2.Qd2#
      • 1...Kd3!
  • Keys
    • 1.f3!
      • threat
        • 2.Rd5#
      • 1...Rc6+
        • 2.Sxc6#
      • 1...Rc3
        • 2.Qd5#
      • 1...Rc5
        • 2.Re4#
      • 1...Rc4
        • 2.Qe3#

Anticipated by 157320(1942)

This anticipates 160804(1996)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::S(E)
    • R(a);N_GUARD,P_PINP(A)::S(E)
    • R(a);SBLOCK::QAR1(B)
    • R(a);SBLOCK::QAB1(B)
    • R(a);CHECK,N_GUARD::S(E),XR(a)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • R1(C)
      • Vars
        • R(a);SBLOCK::QAB1(B)
      • Refutation
        • R(a);P_PINR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • R(a);P_SPINR(a),SBLOCK::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(A);
    • Threat
      • R1(C)
    • Vars
      • R(a);CHECK,N_GUARD::S(E),XR(a)
      • R(a);SBLOCK::QAR1(B)
      • R(a);SBLOCK::R1(C)
      • R(a);SBLOCK::QAB1(B)
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