MESON Chess Problem Database

Problem Display
PID: 255617 (k4N2/2K5/1P3p2/B1p2r2/8/8/8/7R w - - 0 1)

Nagovitsin, Eduard Nikolaevich

Astafyeva-30 JT (Kudesnik), 2021

k4N2/2K5/1P3p2/B1p2r2/8/8/8/7R

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Ra1?
      • threat
        • 2.Be1#
        • 2.Bd2#
        • 2.Bc3#
        • 2.Bb4#
      • 1...Rf1
        • 2.Be1#
      • 1...Rf2
        • 2.Bd2#
      • 1...Rf3
        • 2.Bc3#
      • 1...Rf4
        • 2.Bb4#
      • 1...c4!
  • Keys
    • 1.Rh8!
      • threat
        • 2.Se6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sh7#
      • 1...Rd5
        • 2.Sd7#
      • 1...Re5
        • 2.Se6#
      • 1...Rg5
        • 2.Sg6#
      • 1...Rh5
        • 2.Sh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • DUALS(4)
      • Vars
        • R(b);::R(A)+B(B)
      • Refutation
        • P(a);
  • Actual
    • R(A);
    • Threat
      • DUALS(4)
    • Vars
      • R(b);::R(A)+S(E)
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