MESON Chess Problem Database

Problem Display
PID: 826 (nN6/2Qp4/1nP5/K1k5/R1b5/5N2/8/8 w - - 0 1)

Goldschmeding, Cornelis

British Chess Magazine, 1968

nN6/2Qp4/1nP5/K1k5/R1b5/5N2/8/8

#2

6 + 5

5862 An ABC of Chess Problems 1970

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qe5#
    • 1...Bd5
      • 2.Sa6#
    • 1...Sd5
      • 2.Sxd7#
    • 1...dxc6
      • 2.Qxc6#
    • 1...d5
      • 2.Qe7#
  • Tries
    • 1.cxd7+?
      • 1...Kd5
        • 2.Qe5#
        • 2.Qc6#
      • 1...Sxc7!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qd4#
      • 1...Kd5
        • 2.Qe5#
      • 1...Bd5
        • 2.Qb4#
      • 1...Sd5
        • 2.Rxc4#
      • 1...d5
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAR1(E)
    • B(a);N_GUARD,SBLOCK::S(F)
    • S(c);N_GUARD,SBLOCK::S(F),XP(d)
    • P(d);OGATE,P_SPINP(d),XP(D)::QAR1(E),XP(d)
    • P(d);OGATE,SBLOCK::QAB(E)
  • Tries
    • Try
      • P(D);CHECK,XP(d)
      • Refutation
        • S(e);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • K(b);P-FLIGHT::QAR1(E)
      • B(a);OGATE,SBLOCK::QAB1(E)
      • S(c);N_GUARD,SBLOCK::R1(B),XB(a)
      • P(d);N_GUARD,SBLOCK::QAB(E)
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