MESON Chess Problem Database

Problem Display
PID: 43097 (1N5K/2Q5/8/5B2/n2k3p/1P2N2r/5RP1/8 w - - 0 1)

Slesarenko, Anatoly Vasilevich

4/5 Prize, Sukharev-90 JT, 2001-2002

1N5K/2Q5/8/5B2/n2k3p/1P2N2r/5RP1/8

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe3
      • 2.Qf4#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qe5#
        • 2.Qc4#
      • 1...Kd5
        • 2.Qe5#
      • 1...Sc5
        • 2.Qe5#
      • 1...Rc3
        • 2.Qe5#
        • 2.Qd6#
      • 1...Re3
        • 2.Qc4#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sb6
        • 2.Qe5#
      • 1...Rxb3!
    • 1.Rc2?
      • threat
        • 2.Qf4#
      • 1...Kxe3
        • 2.Qe5#
      • 1...Rxe3
        • 2.Qd6#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Rf3!
    • 1.Qf4+?
      • 1...Kc3
        • 2.Qc4#
      • 1...Kc5!
    • 1.Qa5?
      • threat
        • 2.Sc2#
      • 1...Kxe3
        • 2.Qd2#
      • 1...Rxe3
        • 2.Sc6#
      • 1...Sc5!
    • 1.Qd6+?
      • 1...Kxe3
        • 2.Qf4#
        • 2.Qd2#
      • 1...Kc3!
    • 1.Qc4+?
      • 1...Kxe3
        • 2.Re2#
        • 2.Qf4#
      • 1...Ke5!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qe5#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Rxe3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XS(D)::QAB1(F)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR1(F)
        • S(b);::QAB1(F)
        • R(a);::QAR1(F)
      • Refutation
        • R(a);XP(C)
    • Try
      • R(A);
      • Threat
        • QAR2(F)
      • Vars
        • K(c);S_FLIGHT,XS(D)::QAR2(F)
        • R(a);SBLOCK,XS(D)::QAR2(F)
        • S(b);N_GUARD::QAB1(F),XS(b)
      • Refutation
        • R(a);
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • S(D)
      • Vars
        • K(c);S_FLIGHT,XS(D)::QAB1(F)
        • R(a);SBLOCK,XS(D)::S(G)
      • Refutation
        • S(b);
    • Try
      • Q(F);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • QAB1(F)
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAB1(F)
      • R(a);SBLOCK,XS(D)::QAR1(F)
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