MESON Chess Problem Database

Problem Display
PID: 81222 (8/2q2pP1/2p1pBR1/2Q1nk1B/4R1n1/3Ppp2/2K4p/4b2N w - - 0 1)

Mosiashvili, Givi

Mat Plus, 2008

8/2q2pP1/2p1pBR1/2Q1nk1B/4R1n1/3Ppp2/2K4p/4b2N

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sg3#
    • 1...Bc3
      • 2.Sg3#
    • 1...Bg3
      • 2.Sxg3#
    • 1...Bb4
      • 2.Sg3#
    • 1...Ba5
      • 2.Sg3#
    • 1...Sf2
      • 2.Sg3#
    • 1...f2
      • 2.Sg3#
  • Tries
    • 1.Bg5?
      • threat
        • 2.Rf4#
      • 1...Bg3
        • 2.Sxg3#
      • 1...fxg6!
    • 1.Rgxg4?
      • threat
        • 2.Ref4#
        • 2.Rgf4#
      • 1...Kxf6
        • 2.Ref4#
      • 1...Bg3!
    • 1.g8Q?
      • threat
        • 2.Bxg4#
      • 1...Sxf6
        • 2.Rg5#
      • 1...fxg6
        • 2.Qxg6#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sh6!
    • 1.g8S?
      • threat
        • 2.Rg5#
      • 1...Sxf6
        • 2.Sh6#
      • 1...fxg6
        • 2.Bxg4#
      • 1...Bh4!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Rf4#
      • 1...Sxd3
        • 2.Rg5#
      • 1...Sxg6
        • 2.Bxg4#
      • 1...Bg3
        • 2.Sxg3#
      • 1...Sc4
        • 2.Rg5#
      • 1...Sd7
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • B(a);N_GUARD::S(A)
    • B(a);N_GUARD::S(A),XB(a)
    • S(e);S_CUTB(a)::S(A)
    • P(d);S_CUTB(a)::S(A)
  • Tries
    • Try
      • B(G);
      • Threat
        • R1(D)
      • Vars
        • B(a);N_GUARD::S(A),XB(a)
      • Refutation
        • P(k);XR(H)
    • Try
      • R(H);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(g);N_SPINS(f),P-FLIGHT,XB(G)::R(D)
      • Refutation
        • B(a);
    • Try
      • P(I);
      • Threat
        • B(F),XS(e)
      • Vars
        • S(e);SBLOCK,XB(G)::R1(H)
        • P(k);OGATE,XR(H)::QAB1(I),XP(k)
        • S(e);S_CUTB(a)::S(A)
      • Refutation
        • S(e);
    • Try
      • P(I);
      • Threat
        • R1(H)
      • Vars
        • S(e);N_GUARD,XB(G)::S(I)
        • P(k);SBLOCK,XR(H)::B(F),XS(e)
      • Refutation
        • B(a);
  • Actual
    • Q(E);N_PINS(f)
    • Threat
      • R1(D)
    • Vars
      • S(f);XP(C)::R1(H)
      • S(f);N_GUARD,SBLOCK,XR(H)::B(F),XS(e)
      • B(a);N_GUARD::S(A),XB(a)
      • S(f);::R1(H)
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