MESON Chess Problem Database

Problem Display
PID: 42466 (5N2/2q5/8/3N1kp1/6p1/B5P1/pb5Q/4R2K w - - 0 1)

Goldschmeding, Cornelis

2nd Prize, De Waarheid, 1970

5N2/2q5/8/3N1kp1/6p1/B5P1/pb5Q/4R2K

#2

7 + 6

3751 FIDE Album (1968-1970) 1977

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg3
      • 2.Qh7#
    • 1...Qf4
      • 2.Qh7#
    • 1...Qa5
      • 2.Qc2#
      • 2.Qf2#
      • 2.Qh7#
    • 1...Qe5
      • 2.Qh7#
    • 1...Qb6
      • 2.Qc2#
    • 1...Qd6
      • 2.Qc2#
    • 1...Qb8
      • 2.Qc2#
      • 2.Qh7#
    • 1...Qd8
      • 2.Qc2#
      • 2.Qf2#
      • 2.Qh7#
    • 1...Qc1
      • 2.Qh7#
    • 1...Qc2
      • 2.Qxc2#
      • 2.Qh7#
    • 1...Qc3
      • 2.Qh7#
    • 1...Qc4
      • 2.Qh7#
    • 1...Qc5
      • 2.Qh7#
    • 1...Qc6
      • 2.Qf2#
    • 1...Qa7
      • 2.Qc2#
    • 1...Qb7
      • 2.Qc2#
      • 2.Qf2#
    • 1...Qd7
      • 2.Qc2#
      • 2.Qf2#
    • 1...Qe7
      • 2.Qf2#
    • 1...Qf7
      • 2.Qc2#
      • 2.Qf2#
    • 1...Qg7
      • 2.Qc2#
      • 2.Qf2#
    • 1...Qh7
      • 2.Qxh7#
    • 1...Qc8
      • 2.Qf2#
      • 2.Qh7#
    • 1...Bc3
      • 2.Qc2#
    • 1...Bg7
      • 2.Qh7#
  • Tries
    • 1.Se7+?
      • 1...Qxe7
        • 2.Qf2#
      • 1...Kf6!
    • 1.Bc5?
      • threat
        • 2.Qc2#
      • 1...Qxg3
        • 2.Qh7#
      • 1...Qxc5
        • 2.Qh7#
      • 1...Qf4
        • 2.Qh7#
      • 1...Qe5
        • 2.Qh7#
      • 1...Qe7
        • 2.Qf2#
      • 1...Qh7
        • 2.Qxh7#
      • 1...a1S!
    • 1.Bd6?
      • threat
        • 2.Qf2#
      • 1...Qxd6
        • 2.Qc2#
      • 1...Qb6
        • 2.Qc2#
        • 2.Qh7#
      • 1...Qc1
        • 2.Qh7#
      • 1...Qc2
        • 2.Qxc2#
        • 2.Qh7#
      • 1...Qc3
        • 2.Qh7#
      • 1...Qc4
        • 2.Qh7#
      • 1...Qc5
        • 2.Qh7#
      • 1...Qa7
        • 2.Qc2#
      • 1...Qh7
        • 2.Qxh7#
      • 1...Bc1
        • 2.Re5#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bd4!
  • Keys
    • 1.Be7!
      • threat
        • 2.Qh7#
      • 1...Qxe7
        • 2.Qf2#
      • 1...Qb6
        • 2.Qc2#
      • 1...Qd6
        • 2.Qc2#
      • 1...Qc6
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(f);N_GUARD,XP(E)::QAB(C)
    • Q(f);N_GUARD::QAB(C)
    • Q(f);N_GUARD,P_PINR(A)::QAB(C)
    • Q(f);N_GUARD,P_PINS(F)::QAR(C)
    • Q(f);N_GUARD::QAR(C)
    • Q(f);N_GUARD,P_PINQ(C)::QAB(C),XQ(f)
    • B(b);S_CUTQ(f)::QAB(C)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • Q(f);XS(F)::QAR(C)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAB(C)
      • Vars
        • Q(f);N_GUARD,XP(E)::QAB(C)
        • Q(f);N_GUARD,XB(D)::QAB(C)
        • Q(f);N_GUARD::QAB(C)
        • Q(f);N_GUARD::QAR(C)
        • Q(f);N_GUARD,P_PINQ(C)::QAB(C),XQ(f)
      • Refutation
        • P(a);
    • Try
      • B(D);
      • Threat
        • QAR(C)
      • Vars
        • Q(f);N_GUARD,XB(D)::QAB(C)
        • Q(f);N_GUARD,P_PINR(A)::QAB(C)
        • Q(f);N_GUARD::QAB(C)
        • Q(f);N_GUARD,P_PINQ(C)::QAB(C),XQ(f)
        • B(b);N_GUARD::R1(A)
        • B(b);N_GUARD::R1(A),XB(b)
      • Refutation
        • B(b);
  • Actual
    • B(D);
    • Threat
      • QAB(C)
    • Vars
      • Q(f);N_GUARD,XB(D)::QAR(C)
      • Q(f);N_GUARD::QAB(C)
      • Q(f);N_GUARD,P_PINS(F)::QAR(C)
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