MESON Chess Problem Database

Problem Display
PID: 228183 (5b2/1B1p1Kp1/2n5/1PPkN1NR/3P2p1/3P1bQ1/1nPP4/B7 w - - 0 1)

Mosiashvili, Givi

Die Schwalbe, 2020

5b2/1B1p1Kp1/2n5/1PPkN1NR/3P2p1/3P1bQ1/1nPP4/B7

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.c4#
    • 1...Sxd3
      • 2.c4#
    • 1...Sa4
      • 2.c4#
    • 1...Sc4
      • 2.dxc4#
  • Tries
    • 1.Sxg4?
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Sxf3#
      • 1...Sxd3
        • 2.Se3#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sc4
        • 2.Qxf3#
      • 1...d6!
    • 1.Sxc6?
      • threat
        • 2.Qe5#
      • 1...Sxd3
        • 2.Sa5#
        • 2.Se5#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sc4
        • 2.Sb4#
        • 2.Sa5#
        • 2.Se5#
        • 2.Sa7#
        • 2.Se7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...d6!
    • 1.c4+?
      • 1...Sxc4
        • 2.dxc4#
      • 1...Kxd4!
  • Keys
    • 1.Sxd7!
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Se6#
      • 1...Sxd3
        • 2.Sb6#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sc4
        • 2.Bxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::P(B)
    • S(a);N_GUARD,XP(D)::P(B)
    • S(a);OGATE::P(D),XS(a)
  • Tries
    • Try
      • S(I);XP(c)
      • Threat
        • QAR1(E)
      • Vars
        • K(d);N_SPINS(e),P-FLIGHT,P_SPINS(a),XP(F)::S(J),XB(b)
        • S(a);XP(D)::S(I)
        • B(h);N_GUARD::QAR1(E),XB(h)
        • S(a);::QAB(E),XB(b)
      • Refutation
        • P(f);
    • Try
      • S(I);XS(e)
      • Threat
        • QAR1(E)
      • Vars
        • B(h);N_GUARD::QAR1(E),XB(h)
      • Refutation
        • P(f);
    • Try
      • P(B);CHECK
      • Vars
        • S(a);OGATE,XP(B)::P(D),XS(a)
      • Refutation
        • K(d);N_SPINS(e),P-FLIGHT,P_SPINS(a),XP(F)
  • Actual
    • S(I);XP(f)
    • Threat
      • QAR1(E)
    • Vars
      • K(d);N_SPINS(e),P-FLIGHT,P_SPINS(a),XP(F)::S(J)
      • S(a);XP(D)::S(I)
      • B(h);N_GUARD::QAR1(E),XB(h)
      • S(a);::B(L),XS(e)
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