MESON Chess Problem Database

Problem Display
PID: 274691 (3K4/6N1/3k1p2/8/n5NR/5B2/5B1p/5b2 w - - 0 1)

Yakimovich, Daniil

The Problemist Supplement, 2023

3K4/6N1/3k1p2/8/n5NR/5B2/5B1p/5b2

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Bg3#
    • 1...f5
      • 2.Rh6#
  • Tries
    • 1.Sh6?
      • threat
        • 2.Sf7#
      • 1...Ke5
        • 2.Sf7#
        • 2.Bg3#
      • 1...Bc4!
    • 1.Rh5?
      • threat
        • 2.Bg3#
      • 1...f5
        • 2.Rh6#
      • 1...h1S!
    • 1.Rh6?
      • threat
        • 2.Rxf6#
      • 1...Sc5
        • 2.Bg3#
      • 1...Bc4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sf7#
      • 1...Kxe5
        • 2.Bg3#
      • 1...fxe5
        • 2.Rh6#
      • 1...Bc4
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(c);SBLOCK::B(A)
    • P(e);OGATEB::R(D)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Refutation
        • B(a);
    • Try
      • R(D);
      • Threat
        • B(A)
      • Vars
        • P(e);OGATEB::R(D)
      • Refutation
        • P(b);
    • Try
      • R(D);P_PINP(e)
      • Threat
        • R(D),XP(e)
      • Vars
        • S(c);SBLOCK::B(A)
      • Refutation
        • B(a);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(C)::B(A)
      • P(e);OGATEB,SBLOCK,XS(C)::R(D)
      • B(a);N_GUARD::S(C),XB(a)
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