MESON Chess Problem Database

Problem Display
PID: 54908 (Q2n4/p6K/3n3p/2pN4/r2kB1N1/3P4/1P5r/2R5 w - - 0 1)

Basisty, Mark Borisovich

1st Prize, Bogatur Chess Club, 1988

Q2n4/p6K/3n3p/2pN4/r2kB1N1/3P4/1P5r/2R5

#2

8 + 8

4640 Chess Wizardry: The New ABC of Chess Problems 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sb7
      • 2.Qh8#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qd5#
      • 1...Rh5
        • 2.Se2#
      • 1...S6b7
        • 2.Sb5#
      • 1...S8b7
        • 2.Qh8#
      • 1...Sc6!
    • 1.Sde3?
      • threat
        • 2.Qd5#
      • 1...Rh5
        • 2.Sc2#
      • 1...S6b7
        • 2.Sf5#
      • 1...S8b7
        • 2.Qh8#
      • 1...Sc6!
    • 1.Sf4?
      • threat
        • 2.Qd5#
      • 1...Sc6
        • 2.Se6#
      • 1...Rh5
        • 2.Se2#
      • 1...S8b7
        • 2.Se6#
        • 2.Qh8#
      • 1...S6b7!
    • 1.Sc7?
      • threat
        • 2.Qd5#
      • 1...Sc6
        • 2.Se6#
      • 1...S6b7
        • 2.Sb5#
      • 1...S8b7
        • 2.Se6#
        • 2.Qh8#
      • 1...Rh5!
    • 1.Se7?
      • threat
        • 2.Qd5#
      • 1...Sc6
        • 2.Sxc6#
      • 1...S6b7
        • 2.Sf5#
      • 1...S8b7
        • 2.Sc6#
        • 2.Qh8#
      • 1...Rh5!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Qd5#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Rh5
        • 2.Sc2#
      • 1...S6b7
        • 2.Rc4#
      • 1...S8b7
        • 2.Sc6#
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(h);OGATE::QAB(H)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • R(a);N_GUARD::S(F)
        • S(e);N_GUARD::S(F)
        • S(h);OGATE::QAB(H)
      • Refutation
        • S(h);
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • R(a);N_GUARD::S(F)
        • S(e);N_GUARD::S(F)
        • S(h);OGATE::QAB(H)
      • Refutation
        • S(h);
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • S(h);N_GUARD::S(F)
        • R(a);N_GUARD::S(F)
      • Refutation
        • S(e);
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • S(h);N_GUARD::S(F)
        • S(e);N_GUARD::S(F)
      • Refutation
        • R(a);
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • S(h);N_GUARD::S(F),XS(h)
        • S(e);N_GUARD::S(F)
      • Refutation
        • R(a);
  • Actual
    • S(F);
    • Threat
      • QAR1(H)
    • Vars
      • S(h);N_GUARD::S(F),XS(h)
      • R(a);N_GUARD::S(F)
      • S(e);N_GUARD::R1(A)
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