MESON Chess Problem Database

Problem Display
PID: 255143 (8/8/p7/3p2Nb/3k1P2/2Np3r/K2Q1r2/2R2BB1 w - - 0 1)

Kipping, Cyril Stanley

Western Morning News, 1921

(First published on Sat Oct 22 1921)

8/8/p7/3p2Nb/3k1P2/2Np3r/K2Q1r2/2R2BB1

#2

8 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Se2#
    • 1...Be2
      • 2.Sxe2#
    • 1...Bg6
      • 2.Se2#
    • 1...Bf7
      • 2.Se2#
    • 1...Be8
      • 2.Se2#
    • 1...a5
      • 2.Sb5#
  • Tries
    • 1.Qxf2+?
      • 1...Kc4
        • 2.Qd4#
        • 2.Qc5#
      • 1...Re3!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Sd1#
      • 1...Ke3
        • 2.Sxd5#
        • 2.Qxf2#
      • 1...Kc4
        • 2.Se2#
      • 1...Kc5
        • 2.Sce4#
      • 1...Re3
        • 2.Se2#
        • 2.Sb5#
      • 1...Bd1
        • 2.Sxd1#
      • 1...d2
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(c);S_CUTB(f)::S(F)
    • B(f);N_GUARD,N_PINQ(E)::S(F),XB(f)
    • B(f);N_GUARD::S(F)
    • P(g);N_GUARD::S(F)
  • Tries
    • Try
      • Q(E);CHECK,N_PINP(b),N_SPINQ(E),XR(a)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(E);N_PINP(b)
    • Threat
      • QAB(E)+S(F)
    • Vars
      • K(d);N_GUARD,N_SPINR(a),P-FLIGHT,P_SPINP(b)::R(A)+S(F)
      • K(d);N_GUARD,S_FLIGHT::R(A)+S(F),DCHECK
      • B(f);::QAB(E)+S(F),XB(f)
      • P(b);N_PINQ(E)::QAB(E)
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