MESON Chess Problem Database

Problem Display
PID: 255333 (7R/p7/8/8/8/7n/2K5/k7 w - - 0 1)

Kapustin, Fedor Mikhailovich

5th Prize, Astafyeva-30 JT (Lightweights) (Kudesnik), 2021

7R/p7/8/8/8/7n/2K5/k7

#2

2 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Rh4?
      • threat
        • 2.Ra4#
      • 1...Ka2
        • 2.Ra4#
      • 1...Sf4!
    • 1.Rh5?
      • threat
        • 2.Ra5#
      • 1...Ka2
        • 2.Ra5#
      • 1...a5
        • 2.Rxa5#
      • 1...Sg5!
    • 1.Rh6?
      • threat
        • 2.Ra6#
      • 1...Ka2
        • 2.Ra6#
      • 1...a6
        • 2.Rxa6#
      • 1...a5!
  • Keys
    • 1.Ra8!
      • threat
        • 2.Rxa7#
      • 1...Ka2
        • 2.Rxa7#
      • 1...a5
        • 2.Rxa5#
      • 1...a6
        • 2.Rxa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • S(b);
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(c);::R(B),XP(c)
      • Refutation
        • S(b);
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(c);::R(B),XP(c)
      • Refutation
        • P(c);
  • Actual
    • R(B);P_PINP(c)
    • Threat
      • R(B),XP(c)
    • Vars
      • K(a);P-FLIGHT::R(B),XP(c)
      • P(c);OGATE::R(B),XP(c)
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