MESON Chess Problem Database

Problem Display
PID: 6397 (2Rn1qbB/r5P1/8/1pQ2p2/8/2PPP3/2K5/k2N2R1 w - - 0 1)

Kipping, Cyril Stanley

HM., Dutch East Indies Chess Association, 1929

2Rn1qbB/r5P1/8/1pQ2p2/8/2PPP3/2K5/k2N2R1

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2+
      • 2.Sb2#
  • Tries
    • 1.Qxa7+?
      • 1...Ba2
        • 2.Sb2#
        • 2.Sf2#
      • 1...Qa3!
  • Keys
    • 1.c4!
      • threat
        • 2.Sc3#
      • 1...Ra2+
        • 2.Sb2#
      • 1...Ka2
        • 2.Sc3#
      • 1...Qxg7
        • 2.Qxa7#
      • 1...Rxg7
        • 2.Ra8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(d);CHECK,SBLOCK::R(B)+S(A)
  • Tries
    • Try
      • Q(G);CHECK,XR(d)
      • Refutation
        • Q(f);P_SPINQ(f)
  • Actual
    • P(D);
    • Threat
      • R(B)+S(A)
    • Vars
      • R(d);CHECK,SBLOCK::R(B)+S(A)
      • K(a);P-FLIGHT::S(A)
      • Q(f);N_GUARD,P_SPINQ(f),XP(H)::QAR(G),XR(d)
      • R(d);OGATEB,P_SPINR(d),XP(H)::R(I)
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