MESON Chess Problem Database

Problem Display
PID: 255639 (2R4K/7b/7Q/Bpb5/Br6/N2p4/1p1P2R1/1rkN4 w - - 0 1)

Kopaev, Viacheslav Georgievich

Probleemblad, 1984

2R4K/7b/7Q/Bpb5/Br6/N2p4/1p1P2R1/1rkN4

#2

9 + 8

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • threat
        • 2.Qh1#
      • 1...Rh4
        • 2.Rg1#
      • 1...Rf4!
    • 1.Rg1?
      • threat
        • 2.Sf2#
      • 1...Re4
        • 2.Se3#
      • 1...Rg4!
    • 1.Qh1?
      • threat
        • 2.Se3#
      • 1...Rf4
        • 2.Sf2#
      • 1...Rh4!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Rg1#
      • 1...Re4
        • 2.Sxd3#
      • 1...Rg4
        • 2.Qh1#

This anticipates 15647(1986), 40971(2000)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR(G)
      • Vars
        • R(e);::R(C)
      • Refutation
        • R(e);
    • Try
      • R(C);
      • Threat
        • R(C)+S(A)
      • Vars
        • R(e);::R(C)+S(A)
      • Refutation
        • R(e);
    • Try
      • Q(G);
      • Threat
        • QAR(G)+S(A)
      • Vars
        • R(e);::QAR(G)+S(A)
      • Refutation
        • R(e);
  • Actual
    • S(A);
    • Threat
      • R(C)
    • Vars
      • R(e);S_CUTB(h)::S(A),XP(d)
      • R(e);::QAR(G)
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