MESON Chess Problem Database

Problem Display
PID: 213689 (4Q3/3n1P1P/4Np2/6Np/5BkP/2R4R/6pr/1B4Kn w - - 0 1)

Mosiashvili, Givi

3rd Prize, Suomen Shakki, 1993

4Q3/3n1P1P/4Np2/6Np/5BkP/2R4R/6pr/1B4Kn

#2

11 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Rcg3#
    • 1...Sg3
      • 2.Rcxg3#
  • Tries
    • 1.Se4?
      • 1...Kf5
        • 2.Sf2#
      • 1...Sg3
        • 2.Sf2#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sc5
        • 2.Sxf6#
      • 1...Se5
        • 2.Sxf6#
      • 1...Sb6
        • 2.Sxf6#
      • 1...Sb8
        • 2.Sxf6#
      • 1...Sf8
        • 2.Sxf6#
      • 1...f5
        • 2.Qg8#
      • 1...Rxh3!
    • 1.Rhg3+?
      • 1...Kxh4
        • 2.Sf3#
      • 1...Sxg3!
    • 1.Qxd7?
      • threat
        • 2.Qd1#
      • 1...Sf2
        • 2.Rcg3#
      • 1...Sg3
        • 2.Rcxg3#
      • 1...Rxh3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sxh2#
      • 1...Kxh3
        • 2.Bf5#
      • 1...Rxh3
        • 2.Qg8#
      • 1...Sg3
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::R1(C)
    • S(a);N_GUARD::R1(C),XS(a)
  • Tries
    • Try
      • S(G);
      • Vars
        • K(d);S_FLIGHT::B(A)+S(G)
        • S(a);N_GUARD::S(G)
        • S(a);N_GUARD::S(G),XS(a)
        • S(g);N_GUARD::S(G),XP(f)
        • P(f);SBLOCK::QAR(K)
      • Refutation
        • R(c);XR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(F)::S(G)
      • Refutation
        • S(a);XR(D)
    • Try
      • Q(K);XS(g)
      • Threat
        • QAB(K)
      • Vars
        • S(a);N_GUARD::R1(C)
        • S(a);N_GUARD::R1(C),XS(a)
      • Refutation
        • R(c);XR(D)
  • Actual
    • S(G);
    • Threat
      • S(G),XR(c)
    • Vars
      • K(d);S_FLIGHT,XR(D)::B(A)
      • R(c);SBLOCK,XR(D)::QAR(K)
      • S(a);N_GUARD::R1(D),XS(a)
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