MESON Chess Problem Database

Problem Display
PID: 12427 (5k1n/3R2R1/8/B1K2B2/8/8/8/8 w - - 0 1)

Ursegov, Yakov Petrovich

Sp. HM., Die Schwalbe 162. TT, 1979

5k1n/3R2R1/8/B1K2B2/8/8/8/8

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Ke8
      • 2.Rd8#
      • 2.Rg8#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Rd8#
      • 1...Ke8
        • 2.Rg8#
      • 1...Sf7!
    • 1.Be6?
      • threat
        • 2.Rg8#
      • 1...Ke8
        • 2.Rd8#
        • 2.Rg8#
      • 1...Sf7!
    • 1.Rdf7+?
      • 1...Ke8
        • 2.Bd7#
      • 1...Sxf7!
    • 1.Rgf7+?
      • 1...Ke8
        • 2.Rde7#
      • 1...Kg8
        • 2.Bh7#
      • 1...Sxf7!
    • 1.Rh7?
      • threat
        • 2.Rd8#
        • 2.Rxh8#
      • 1...Ke8
        • 2.Rd8#
        • 2.Rxh8#
      • 1...Kg8
        • 2.Rd8#
      • 1...Sg6
        • 2.Rd8#
      • 1...Sf7!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Rg8#
      • 1...Ke8
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • R(D)
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • S(b);
    • Try
      • B(C);
      • Threat
        • R1(E)
      • Refutation
        • S(b);
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(C)
      • Refutation
        • S(b);XR(D)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(D)
        • K(a);P-FLIGHT::B(C)
      • Refutation
        • S(b);XR(E)
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::R(D)
        • S(b);::R(D)
      • Refutation
        • S(b);
  • Actual
    • B(C);
    • Threat
      • R1(E)
    • Vars
      • K(a);P-FLIGHT::R1(D)
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