MESON Chess Problem Database

Problem Display
PID: 207201 (3B4/8/p2p4/K2P4/3k4/4NR2/2B5/8 w - - 0 1)

Klark, Dmitry Vasilevich

La Strategie, 1868

3B4/8/p2p4/K2P4/3k4/4NR2/2B5/8

#2

6 + 3

6490 yacpdb 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Bb6#
    • 1...Ke5
      • 2.Bf6#
  • Tries
    • 1.Kb4?
      • threat
        • 2.Bf6#
      • 1...Ke5
        • 2.Bf6#
      • 1...a5+!
    • 1.Kb6?
      • threat
        • 2.Bf6#
      • 1...Ke5
        • 2.Bf6#
      • 1...Kc3!
    • 1.Bb1?
      • 1...Kc5
        • 2.Bb6#
      • 1...Ke5
        • 2.Bf6#
      • 1...Kc3!
    • 1.Bg6?
      • 1...Kc5
        • 2.Bb6#
      • 1...Ke5
        • 2.Bf6#
      • 1...Kc3!
    • 1.Bh7?
      • 1...Kc5
        • 2.Bb6#
      • 1...Ke5
        • 2.Bf6#
      • 1...Kc3!
    • 1.Bb6+?
      • 1...Ke5
        • 2.Rf5#
      • 1...Kc3!
  • Keys
    • 1.Rf2!
      • 1...Kc3
        • 2.Bf6#
      • 1...Kxe3
        • 2.Bb6#
      • 1...Kc5
        • 2.Bb6#
      • 1...Ke5
        • 2.Bf6#

This anticipates 214564(1880), 28686(1904), 198768(1921), 207467(1995)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(F)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • B(F)
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • P(b);CHECK
    • Try
      • K(D);S_FLIGHT
      • Threat
        • B(F)
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::B(F)
      • K(a);S_FLIGHT,XS(B)::B(F)
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