MESON Chess Problem Database

Problem Display
PID: 63174 (KB6/pNN4P/1kn3Rq/5p1r/2p3p1/2p1R1p1/6pQ/7b w - - 0 1)

Banny, Dimitry Nikolaevich

1/2 Prize, 64 Shakhmatnoe obozrenie, 1977

KB6/pNN4P/1kn3Rq/5p1r/2p3p1/2p1R1p1/6pQ/7b

#2

8 + 12

3750 FIDE Album (1977-1979) 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Re5?
      • threat
        • 2.Rb5#
      • 1...f4
        • 2.Qg1#
      • 1...a6!
    • 1.Re7?
      • threat
        • 2.Bxa7#
      • 1...Qf8
        • 2.Qg1#
      • 1...a5
        • 2.Ba7#
      • 1...a6
        • 2.Ba7#
      • 1...Qxg6!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qb1#
      • 1...Qxg6
        • 2.Re6#
      • 1...Qf8
        • 2.Re7#
      • 1...c2
        • 2.Rb3#
      • 1...f4
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • P(g);S_CUTQ(k)::QAB(A)
      • Refutation
        • P(l);
    • Try
      • R(B);
      • Threat
        • B(H),XP(l)
      • Vars
        • Q(k);N_GUARD,P_PINB(H)::QAB(A)
        • P(l);::B(H)
      • Refutation
        • Q(k);N_SPINS(j),XR(C)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • Q(k);N_GUARD,N_SPINS(j),XR(C)::QAB(A)+R(B)
      • Q(k);N_GUARD,P_PINB(H)::QAB(A)+R(B)
      • P(c);OGATE::QAB(A)+R(B),DCHECK
      • P(g);S_CUTQ(k)::QAB(A)+R(B)
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Developed and maintained by Brian Stephenson.
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