MESON Chess Problem Database

Problem Display
PID: 75727 (4rB2/1NR1n2B/p1PpPQ2/3k4/R2ppP2/2pNb3/8/K7 w - - 0 1)

Shanshin, Valery Yurevich

Slesarenko, Anatoly Vasilevich

1/2 Prize, Melnichenko-60 JT, 1999

4rB2/1NR1n2B/p1PpPQ2/3k4/R2ppP2/2pNb3/8/K7

#2

11 + 9

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Rxd4#
    • 1...Bd2
      • 2.Rxd4#
    • 1...Bxf4
      • 2.Sxf4#
      • 2.Rxd4#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sc8
      • 2.Qf5#
    • 1...Sg8
      • 2.Qf5#
  • Tries
    • 1.Sdc5?
      • threat
        • 2.Bxe4#
      • 1...dxc5
        • 2.Qe5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sg6!
    • 1.Se5?
      • threat
        • 2.Ra5#
      • 1...dxe5
        • 2.Qxe5#
      • 1...d3
        • 2.Bxe4#
      • 1...a5
        • 2.Rxa5#
      • 1...Sxc6!
    • 1.Bxe7?
      • threat
        • 2.Qf5#
      • 1...Bxf4
        • 2.Sxf4#
        • 2.Rxd4#
      • 1...Rf8!
    • 1.Qg5+?
      • 1...Sf5
        • 2.Qxf5#
      • 1...Kxe6!
    • 1.Qg6?
      • threat
        • 2.Qxe4#
      • 1...exd3
        • 2.Qe4#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sxg6!
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Qe5#
      • 1...Kxd6
        • 2.Qe5#
      • 1...Bxf4
        • 2.Rxd4#
      • 1...Sxc6
        • 2.Bxe4#
      • 1...Sg6
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(b);N_GUARD::R1(C),XP(c)
    • S(h);N_GUARD::QAR2(G),XS(h)
    • S(h);N_GUARD::QAR2(G)
  • Tries
    • Try
      • S(B);
      • Threat
        • B(J),XP(d)
      • Vars
        • P(g);N_GUARD,XS(B)::QAR1(G)
        • S(h);N_GUARD::QAR2(G),XS(h)
      • Refutation
        • S(h);
    • Try
      • S(B);
      • Threat
        • R(C)
      • Vars
        • P(g);OGATE,XS(B)::QAR1(G),XP(g)
        • P(c);::B(J),XP(d)
        • P(f);::R(C),XP(f)
      • Refutation
        • S(h);XP(E)
    • Try
      • B(K);XS(h)
      • Threat
        • QAR2(G)
      • Refutation
        • R(i);
    • Try
      • Q(G);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR2(G),XS(h)
      • Refutation
        • K(e);S_FLIGHT,XP(F)
    • Try
      • Q(G);
      • Threat
        • QAB1(G),XP(d)
      • Vars
        • P(d);XS(B)::QAB1(G)
        • S(h);N_GUARD::QAR2(G),XS(h)
      • Refutation
        • S(h);XQ(G)
  • Actual
    • S(H);XP(g)
    • Threat
      • QAR1(G)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(h),XS(H)::QAB1(G)
      • B(b);N_GUARD,XP(D)::R1(C),XP(c)
      • S(h);XP(E)::B(J),XP(d)
      • S(h);::R(C)
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