MESON Chess Problem Database

Problem Display
PID: 72840 (B2R4/8/8/3N4/2Pk1pp1/3P2P1/3P4/5K1Q w - - 0 1)

Glisic, Dejan I

Problem Online, 2004

B2R4/8/8/3N4/2Pk1pp1/3P2P1/3P4/5K1Q

#2

9 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Se3#
    • 1...Kc5
      • 2.Qg1#
    • 1...Ke5
      • 2.Qe4#
  • Tries
    • 1.Qf3?
      • 1...Kc5
        • 2.Qf2#
      • 1...Ke5
        • 2.Qe4#
      • 1...fxg3
        • 2.Qe3#
      • 1...gxf3!
    • 1.Qg1+?
      • 1...Kxd3
        • 2.Se3#
      • 1...Ke5!
    • 1.Qh5?
      • threat
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sxf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...Kxd3
        • 2.Se3#
      • 1...fxg3
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...f3
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...Kc5!
    • 1.Qh8+?
      • 1...Kxd3
        • 2.Se3#
      • 1...Kc5!
    • 1.gxf4?
      • 1...Kxd3
        • 2.Se3#
      • 1...Kc5
        • 2.Qg1#
      • 1...g3!
  • Keys
    • 1.Qh6!
      • 1...Kxd3
        • 2.Se3#
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke5
        • 2.Qf6#
      • 1...fxg3
        • 2.Qe3#
      • 1...f3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,XP(D)::R(I)+S(G)
    • K(a);S_FLIGHT::QAB(B)
    • K(a);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
        • K(a);S_FLIGHT::QAR1(B)
        • P(b);N_GUARD,XP(E)::QAB1(B)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(D)::R(I)+S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(8)
      • Vars
        • K(a);P-FLIGHT,XP(D)::R(I)+S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(D)::R(I)+S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(E);XP(b)
      • Vars
        • K(a);P-FLIGHT,XP(D)::R(I)+S(G)
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • P(c);
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT,XP(D)::R(I)+S(G)
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);OGATE,XP(E)::QAB1(B)
      • P(b);OGATE::QAB1(B)
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