MESON Chess Problem Database

Problem Display
PID: 138578 (8/1Q4N1/b5pN/3nk1p1/3p4/3p2K1/5R2/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Aleksandr Galitzky - Shakhmaty Geine (Vol 1), 2010

8/1Q4N1/b5pN/3nk1p1/3p4/3p2K1/5R2/8

#2

5 + 7

5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sf7#
    • 1...Se3
      • 2.Sf7#
    • 1...Sb4
      • 2.Sf7#
    • 1...Sb6
      • 2.Sf7#
    • 1...Sf6
      • 2.Sf7#
    • 1...Sc7
      • 2.Sf7#
    • 1...Se7
      • 2.Sf7#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Sf4
        • 2.Sg4#
        • 2.Sf7#
      • 1...Sc7
        • 2.Sg4#
        • 2.Sf7#
      • 1...Bc8!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Re6#
      • 1...Ke4
        • 2.Re6#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Sxf6
        • 2.Sf7#
      • 1...Sf4
        • 2.Sg4#
      • 1...Sc7
        • 2.Sg4#

This anticipates 138580(2010)

This is a version of 138577

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(c);::S(C)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(c)::QAR2(D)
      • Refutation
        • B(f);
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • K(d);P-FLIGHT,P_SPINS(c)::R(A)
      • K(d);S_FLIGHT,XR(A)::S(C)
      • S(c);SBLOCK,XR(A)::S(C)
      • S(c);::S(C)
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