MESON Chess Problem Database

Problem Display
PID: 45724 (8/4p1nr/n1P2pPr/4PkPp/5N1p/5K2/Q1p4B/b5R1 w - - 0 1)

Slesarenko, Anatoly Vasilevich

1st Prize, Probleemblad, 1996

8/4p1nr/n1P2pPr/4PkPp/5N1p/5K2/Q1p4B/b5R1

#2

9 + 11

145 StrateGems 2002
56 The Problemist 2002
5417 FIDE Album (1995-1997) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qd5#
    • 1...Bxe5
      • 2.Qxc2#
    • 1...Se6
      • 2.Qxe6#
    • 1...Se8
      • 2.Qe6#
    • 1...fxe5
      • 2.Qf7#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sxe7#
      • 1...Ke6
        • 2.Se3#
      • 1...Kxg6
        • 2.Sxe7#
      • 1...Se6
        • 2.Qxc2#
      • 1...e6
        • 2.Se7#
        • 2.Qxc2#
      • 1...Se8!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Sxh4#
      • 1...Kxg5
        • 2.Se3#
      • 1...Kxg6
        • 2.Sxh4#
      • 1...fxg5
        • 2.Qf7#
      • 1...h3
        • 2.Sh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • K(d);OGATEB,P-FLIGHT,XP(F)::QAR1(B)
    • B(a);SBLOCK,XP(F)::QAB(B),XP(b)
    • S(j);N_GUARD::QAB1(B),XS(j)
    • S(j);N_GUARD::QAB1(B)
    • P(g);OGATEB,SBLOCK,XP(F)::QAR2(B)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E),XP(i)
      • Vars
        • K(d);S_FLIGHT::QAB(B)+S(E)
        • K(d);S_FLIGHT,XP(I)::S(E),XP(i)
        • S(j);SBLOCK::QAB(B),XP(b)
      • Refutation
        • S(j);
  • Actual
    • S(E);
    • Threat
      • S(E),XP(c)
    • Vars
      • K(d);P-FLIGHT,XP(G)::R(A)+S(E)
      • K(d);S_FLIGHT,XP(I)::S(E),XP(c)
      • P(g);OGATEB,SBLOCK,XP(G)::QAR2(B)
      • P(c);::S(E)
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