MESON Chess Problem Database

Problem Display
PID: 68001 (3bN3/1Q1Pr3/2rN2P1/1P1kp2R/3np1K1/B7/qPP3B1/3R4 w - - 0 1)

Volchrov, G

6th HM., Shakhmaty v SSSR, 1947

3bN3/1Q1Pr3/2rN2P1/1P1kp2R/3np1K1/B7/qPP3B1/3R4

#2

13 + 8

14752 Soviet Chess Compositions (1945-1947) 1949
102 Probleemblad 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Bxe4#
      • 2.Qxc6#
    • 1...Bc7
      • 2.Sxc7#
  • Tries
    • 1.Sg7?
      • threat
        • 2.Bxe4#
        • 2.Qxc6#
      • 1...Qxa3
        • 2.Qxc6#
      • 1...Qc4
        • 2.Bxe4#
      • 1...Rxg7!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Qxc6#
      • 1...Kc4
        • 2.Sd2#
      • 1...Ke6
        • 2.Sg5#
      • 1...Qc4
        • 2.Sc5#
      • 1...Re6
        • 2.S4d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(h);N_GUARD::S(M),XB(h)
  • Tries
    • Try
      • S(M);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XB(E)::QAB1(K),XR(f)
        • Q(a);::B(D),XP(c)
      • Refutation
        • R(g);P_PINP(J),XS(M)
  • Actual
    • S(I);P_PINP(e),XP(c)
    • Threat
      • QAB1(K),XR(f)
    • Vars
      • K(d);N_SPINP(e),N_SPINR(f),N_SPINS(b),S_FLIGHT::S(I)
      • Q(a);SBLOCK::B(D)+S(I)
      • R(g);SBLOCK::B(D)+S(I)
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