MESON Chess Problem Database

Problem Display
PID: 184073 (8/1p2p3/7Q/3k4/R3p3/1qrN4/B6B/3R1K2 w - - 0 1)

Gockel, Hubert

The Problemist, 1980

8/1p2p3/7Q/3k4/R3p3/1qrN4/B6B/3R1K2

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sc1#
      • 2.Se1#
      • 2.Sb2#
      • 2.Sf2#
      • 2.Se5#
  • Tries
    • 1.Sf4+?
      • 1...Ke5
        • 2.Qg5#
      • 1...Kc5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Rd4#
      • 1...Rxd3
        • 2.Bxb3#
      • 1...Rc6
        • 2.Sc5#
      • 1...Qc4
        • 2.Ra5#
      • 1...Rc4
        • 2.Sb4#
      • 1...Rc5
        • 2.Sc1#
        • 2.Se1#
        • 2.Sb2#
        • 2.Sf2#
        • 2.Sxc5#
        • 2.Se5#
      • 1...e5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);N_SPINQ(a),P-FLIGHT::QAR2(G)
      • Refutation
        • K(d);N_SPINQ(a),P-FLIGHT
  • Actual
    • Q(G);
    • Threat
      • R1(F)
    • Vars
      • R(b);N_GUARD,P_SPINR(b),XS(E)::B(C),XQ(a)
      • R(b);N_GUARD::R(A)+S(E)
      • Q(a);P_PINS(E),S_CUTR(b)::R(F)
      • R(b);N_SPINQ(a),SBLOCK::R(A)+S(E),DCHECK
      • P(f);SBLOCK::R(A)+S(E),DCHECK
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