MESON Chess Problem Database

Problem Display
PID: 75606 (8/8/3p1K1B/3P4/Q2Nk3/1BpNP3/ppp1p3/rrb1R2n w - - 0 1)

Shanshin, Valery Yurevich

Slesarenko, Anatoly Vasilevich

4th Prize, Melnichenko-60 JT, 1999

8/8/3p1K1B/3P4/Q2Nk3/1BpNP3/ppp1p3/rrb1R2n

#2

9 + 11

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Sxf2#
    • 1...Sg3
      • 2.Sf2#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Bxc2#
        • 2.Qe8#
      • 1...Sf2
        • 2.Qe8#
      • 1...Bxe3!
    • 1.Sxc2+?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3!
    • 1.Sxe2+?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3!
    • 1.Sf3+?
      • 1...Kxd3
        • 2.Bxc2#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Kxf3!
    • 1.Sb5+?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3!
    • 1.Sf5+?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3!
    • 1.Sc6+?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3!
    • 1.Se6+?
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3!
    • 1.Bxc2?
      • threat
        • 2.Sb4#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Bxe3
        • 2.Sf4#
      • 1...Sf2!
    • 1.Rxe2?
      • 1...Kxd3
        • 2.Bxc2#
      • 1...Bxe3
        • 2.Rxe3#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sg3
        • 2.Sf2#
      • 1...Bd2!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qe8#
      • 1...Kxe3
        • 2.Rxe2#
      • 1...Bxe3
        • 2.Bxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD::S(C),XS(d)
    • S(d);N_GUARD::S(C)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::QAR(E)
      • Refutation
        • B(c);XP(D)
    • Try
      • S(F);CHECK,XP(g)
      • Vars
        • K(j);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(j);S_FLIGHT
    • Try
      • S(F);CHECK,XP(h)
      • Vars
        • K(j);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(j);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(j);S_FLIGHT,XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(j);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(j);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(j);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(j);S_FLIGHT
    • Try
      • B(B);XP(g)
      • Threat
        • B(B)+S(C)
      • Vars
        • K(j);OGATEB,S_FLIGHT,XP(G)::QAB1(E)
        • B(c);SBLOCK,XP(D)::B(B)+S(C)
      • Refutation
        • S(d);
    • Try
      • R(A);XP(h)
      • Vars
        • K(j);OGATEB,S_FLIGHT,XS(C)::B(B),XP(g)
        • B(c);OGATE,P_SPINB(c),XP(D)::R1(A),XB(c)
        • S(d);N_GUARD::S(C),XS(d)
        • S(d);N_GUARD::S(C)
      • Refutation
        • B(c);
  • Actual
    • S(C);
    • Threat
      • QAR(E)
    • Vars
      • K(j);OGATEB,P-FLIGHT,P_SPINP(h),XP(D)::R1(A),XP(h)
      • B(c);SBLOCK,XP(D)::B(B),XP(g)
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