MESON Chess Problem Database

Problem Display
PID: 34971 (Qb4K1/qB1R1R2/3Pk3/4p1P1/2P4n/8/3rpP2/3r4 w - - 0 1)

Chornous, Volodimir Mikhailovich

Reitman, Mark

7th HM., Chernobilya, 1992

Qb4K1/qB1R1R2/3Pk3/4p1P1/2P4n/8/3rpP2/3r4

#2

9 + 8

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Rde7#
    • 1...Bc7
      • 2.Qe8#
  • Tries
    • 1.Be4?
      • threat
        • 2.Rfe7#
      • 1...Qxd7
        • 2.Rf6#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Sg6
        • 2.Bf5#
      • 1...Bxd6!
    • 1.Rd8?
      • threat
        • 2.Rf6#
      • 1...Qxf2
        • 2.Bc8#
      • 1...Rxd6
        • 2.Re8#
      • 1...Bxd6
        • 2.Qc8#
      • 1...e4!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Rf6#
      • 1...Qxf2
        • 2.Rd8#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(b);SBLOCK,XP(D)::R1(F)
    • B(h);OGATE::QAR2(H)
  • Tries
    • Try
      • B(E);
      • Threat
        • R1(G)
      • Vars
        • Q(g);SBLOCK,XR(F)::R1(G)
        • S(d);N_GUARD::B(E),XS(d)
        • S(d);N_GUARD::B(E)
      • Refutation
        • B(h);XP(D)
    • Try
      • R(F);
      • Threat
        • R1(G)
      • Vars
        • Q(g);N_GUARD,XP(A)::B(E)
        • R(b);SBLOCK,XP(D)::R(F)
        • B(h);OGATE,XP(D)::QAB(H)
      • Refutation
        • P(e);
  • Actual
    • B(E);
    • Threat
      • R1(G)
    • Vars
      • Q(g);N_GUARD,XP(A)::B(E)+R(F)
      • P(e);OGATEB::QAR2(H),XP(e)
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