MESON Chess Problem Database

Problem Display
PID: 134045 (4R3/3N4/8/3K1B2/8/5k2/5n1Q/8 w - - 0 1)

Subotic, Miroslav

The Problemist, 2009

4R3/3N4/8/3K1B2/8/5k2/5n1Q/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6?
      • 1...Sd1
        • 2.Bg4#
      • 1...Sh1
        • 2.Bg4#
      • 1...Sd3
        • 2.Bg4#
      • 1...Sh3
        • 2.Bg4#
      • 1...Sg4
        • 2.Bxg4#
      • 1...Se4!
    • 1.Re1?
      • threat
        • 2.Se5#
      • 1...Sg4
        • 2.Be4#
      • 1...Sd3!
    • 1.Re4?
      • threat
        • 2.Se5#
      • 1...Sd3
        • 2.Bg4#
      • 1...Sg4
        • 2.Bxg4#
      • 1...Sxe4!
  • Keys
    • 1.Kd4!
      • threat
        • 2.Re3#
      • 1...Sd1
        • 2.Se5#
      • 1...Se4
        • 2.Se5#
      • 1...Sg4
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • S(a);N_GUARD::B(C)
        • S(a);N_GUARD::B(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • R(E);
      • Threat
        • S(D)
      • Vars
        • S(a);N_GUARD,SBLOCK::B(C)
      • Refutation
        • S(a);
    • Try
      • R(E);
      • Threat
        • S(D)
      • Vars
        • S(a);N_GUARD::B(C)
        • S(a);N_GUARD::B(C),XS(a)
      • Refutation
        • S(a);XR(E)
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • R1(E)
    • Vars
      • S(a);::S(D)
      • S(a);N_GUARD,SBLOCK::B(C)
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