MESON Chess Problem Database

Problem Display
PID: 136523 (6Kn/1pp1Np2/1N3Qp1/1p6/1p1pkp2/1n2Prb1/3PP3/7b w - - 0 1)

Djurasevic, Branislav

4th Place, Liga Problemista, 1981

6Kn/1pp1Np2/1N3Qp1/1p6/1p1pkp2/1n2Prb1/3PP3/7b

#2

7 + 14

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qxd4#
    • 1...Sc1
      • 2.Qxd4#
    • 1...Sxd2
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qxd4#
    • 1...Sc5
      • 2.Qxd4#
    • 1...dxe3
      • 2.d3#
    • 1...fxe3
      • 2.d3#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qe5#
        • 2.d3#
      • 1...Rxe3
        • 2.Qe5#
      • 1...Sxd2
        • 2.Qxd4#
        • 2.Qe5#
      • 1...fxe3
        • 2.d3#
      • 1...Sc1
        • 2.Qxd4#
        • 2.Qe5#
      • 1...Sc5
        • 2.Qxd4#
        • 2.Qe5#
      • 1...d3
        • 2.Qe5#
      • 1...bxc4!
    • 1.Sc6?
      • threat
        • 2.Qe5#
      • 1...fxe3
        • 2.d3#
      • 1...bxc6!
    • 1.Sxg6?
      • threat
        • 2.Qe5#
      • 1...fxe3
        • 2.d3#
      • 1...fxg6
        • 2.Qe6#
      • 1...Sxg6!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Sd7#
      • 1...bxc6!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qe5#
      • 1...fxe3
        • 2.d3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • S(b);N_GUARD::QAR1(E),XP(f)
    • S(b);N_GUARD,XP(A)::QAR1(E),XP(f)
    • P(f);SBLOCK,XP(C)::P(A)
    • P(h);SBLOCK,XP(C)::P(A)
    • P(j);N_GUARD::QAB1(E)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XP(C)::QAR1(E)
        • P(h);XP(C)::P(A)
        • P(f);::QAR1(E)
      • Refutation
        • P(i);XS(D)
    • Try
      • S(F);
      • Threat
        • QAR1(E)
      • Vars
        • P(h);SBLOCK,XP(C)::P(A)
      • Refutation
        • P(k);XS(F)
    • Try
      • S(F);XP(j)
      • Threat
        • QAR1(E)
      • Vars
        • P(h);SBLOCK,XP(C)::P(A)
        • P(m);N_GUARD,XS(F)::QAR2(E)
      • Refutation
        • S(n);XS(F)
    • Try
      • Q(E);CHECK
      • Vars
        • K(g);P-FLIGHT::S(D)
      • Refutation
        • P(k);XQ(E)
  • Actual
    • S(D);
    • Threat
      • QAR1(E)
    • Vars
      • P(h);SBLOCK,XP(C)::P(A)
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