MESON Chess Problem Database

Problem Display
PID: 80692 (2NN4/2p5/K2n4/RPkb2R1/3n3r/1PP3p1/7p/4Q3 w - - 0 1)

Mosiashvili, Givi

StrateGems, 2008

2NN4/2p5/K2n4/RPkb2R1/3n3r/1PP3p1/7p/4Q3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Se6#
    • 1...Se2
      • 2.Se6#
    • 1...Sf3
      • 2.Se6#
    • 1...Sc6
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sc4
      • 2.Sb7#
      • 2.b4#
    • 1...Se4
      • 2.Sb7#
    • 1...Sxb5
      • 2.Qe7#
    • 1...Sb7
      • 2.Sxb7#
    • 1...Sf7
      • 2.Sb7#
    • 1...Sxc8
      • 2.Sb7#
    • 1...Se8
      • 2.Sb7#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Se6#
      • 1...Sxb5
        • 2.Rxb5#
        • 2.Qe7#
      • 1...Sxc8
        • 2.Sb7#
      • 1...Rh6
        • 2.Qxd4#
      • 1...Sf5
        • 2.b6#
      • 1...Re4!
    • 1.cxd4+?
      • 1...Rxd4
        • 2.Se6#
      • 1...Kxd4!
    • 1.b6+?
      • 1...S6b5
        • 2.Qe7#
      • 1...S4b5!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Sb7#
      • 1...Sxb3
        • 2.Qxc7#
      • 1...Sxb5
        • 2.Rxb5#
        • 2.Qxc7#
      • 1...Sf5
        • 2.b6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • S(c);N_GUARD::S(I)
    • S(c);N_GUARD::S(I),XS(c)
    • S(g);N_GUARD::S(I)
    • S(g);OGATEB,P_SPINS(g),XP(E)::QAB(A)
    • S(g);N_GUARD::S(I),XS(g)
    • S(g);N_GUARD,XS(H)::S(I)
  • Tries
    • Try
      • Q(A);P_PINS(c)
      • Threat
        • S(I)
      • Vars
        • S(g);N_GUARD,XS(H)::S(I)
        • R(d);N_GUARD::QAB1(A),XS(c)
        • S(g);N_GUARD,N_SPINB(f)::R(D)+P(E)
      • Refutation
        • R(d);
    • Try
      • P(C);CHECK,XS(c)
      • Vars
        • R(d);XP(C)::S(I)
      • Refutation
        • K(e);N_SPINB(f),S_FLIGHT,XP(C)
    • Try
      • P(E);CHECK
      • Vars
        • S(g);P_SPINS(g),S_CUTS(c)::QAB(A)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • Q(A);P_PINS(g)
    • Threat
      • S(I)
    • Vars
      • S(c);N_GUARD,XP(B)::QAR2(A),XP(h)
      • S(c);N_GUARD,N_SPINB(f)::R(D)+P(E)
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Developed and maintained by Brian Stephenson.
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