MESON Chess Problem Database

Problem Display
PID: 266994 (5b2/2r3p1/p1PPp3/3kpp1b/KQ3p2/2pN4/2R2nq1/3R4 w - - 0 1)

Syzonenko, Viktor N

64 Shakhmatnoe obozrenie, 2022

5b2/2r3p1/p1PPp3/3kpp1b/KQ3p2/2pN4/2R2nq1/3R4

#2

7 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Sxe5#
    • 1...Rxc6
      • 2.Sxf4#
    • 1...e4
      • 2.Qc5#
  • Tries
    • 1.Qc4+?
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kxc4!
  • Keys
    • 1.Qxc3!
      • threat
        • 2.Qxe5#
      • 1...Qe4+
        • 2.Sb4#
      • 1...Ke4
        • 2.Sc5#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Bxd6
        • 2.Qc4#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sg4
        • 2.Sf2#
      • 1...e4
        • 2.Sb4#
        • 2.Sxf4#
        • 2.Qe5#
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • K(e);N_GUARD,P_SPINP(c),S_CUTB(h),S_CUTS(a),S_CUTS(a),S_FLIGHT,XP(F)::S(C),XP(f)
    • R(k);SBLOCK,XP(F)::R(A)+S(C),DCHECK,XP(d)
    • P(f);SBLOCK::QAR1(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT,XP(G)::QAB1(E)
      • Refutation
        • K(e);P_SPINP(c),S_FLIGHT,XQ(E)
  • Actual
    • Q(E);XP(c)
    • Threat
      • QAR1(E),XP(f)
    • Vars
      • Q(b);CHECK,SBLOCK::R(A)+S(C),DCHECK
      • K(e);N_GUARD,S_CUTB(h),S_CUTS(a),S_CUTS(a),S_FLIGHT::S(C)
      • K(e);N_GUARD,P-FLIGHT,XP(G)::QAB1(E)
      • B(m);SBLOCK,XP(G)::QAB1(E)
      • S(a);OGATE,P_SPINS(a),XS(C)::QAR2(E),XS(a)
      • S(a);S_CUTB(h)::R(A)+S(C)
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Developed and maintained by Brian Stephenson.
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