MESON Chess Problem Database

Problem Display
PID: 215516 (3B4/1N1p4/2p1rr2/1kq4R/2R5/8/2KN3Q/5B2 w - - 0 1)

Weenink, Henri Gerard Maria

Funkschach, 1926

3B4/1N1p4/2p1rr2/1kq4R/2R5/8/2KN3Q/5B2

#2

8 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Rf4#
    • 1...Qf5+
      • 2.Re4#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qa5#
        • 2.Qb6#
      • 1...Qf5+
        • 2.Re4#
      • 1...Re5
        • 2.Qa5#
      • 1...Rf5
        • 2.Qa5#
      • 1...d5
        • 2.Qa5#
      • 1...Ka6!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Sxc5#
      • 1...Qf5+
        • 2.Re4#
      • 1...Ka6
        • 2.Sxc5#
      • 1...Qxh5
        • 2.Sc5#
      • 1...Qd5
        • 2.Sc5#
      • 1...Qe5
        • 2.Rf4#
      • 1...Qg5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_PINR(E)::B(A)+R(E)
    • Q(b);CHECK,N_PINR(E)::B(A)+R(E)
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);CHECK,N_PINR(E)::B(A)+R(E)
        • R(d);N_SPINQ(b)::QAR1(D)
        • R(e);N_SPINQ(b)::QAR1(D)
        • P(f);N_SPINQ(b)::QAR1(D)
      • Refutation
        • K(a);N_SPINQ(b),S_FLIGHT
  • Actual
    • Q(D);
    • Threat
      • QAR(D)+S(G),XQ(b)
    • Vars
      • Q(b);CHECK,N_PINR(E)::B(A)+R(E)
      • K(a);N_SPINQ(b),S_FLIGHT::S(G),XQ(b)
      • Q(b);N_PINR(E),N_SPINQ(b),XR(F)::QAR(D)+S(G)
      • Q(b);N_PINR(E)::QAR(D)+S(G)
      • Q(b);N_PINR(E)::B(A)+R(E)
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Developed and maintained by Brian Stephenson.
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