MESON Chess Problem Database

Problem Display
PID: 211431 (8/5B2/8/3R4/n1k5/K2R4/8/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1967

8/5B2/8/3R4/n1k5/K2R4/8/8

#2

4 + 2

15148 Sadier Collection 2020
5454 Near Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.R3d4#
  • Tries
    • 1.Rd1?
      • 1...Kc3
        • 2.Rc1#
      • 1...Sb2
        • 2.Rc1#
      • 1...Sc3
        • 2.R1d4#
      • 1...Sb6
        • 2.Rc1#
      • 1...Sc5!
    • 1.Rd2?
      • 1...Kc3
        • 2.R5d3#
      • 1...Sb2
        • 2.Rc2#
      • 1...Sc3
        • 2.R2d4#
      • 1...Sb6
        • 2.Rc2#
      • 1...Sc5!
  • Keys
    • 1.Be8!
      • threat
        • 2.Bb5#
      • 1...Sc3
        • 2.R3d4#
      • 1...Sc5
        • 2.R5d4#

This anticipates 276718(1989)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::R1(B)
  • Tries
    • Try
      • R(B);
      • Vars
        • K(b);P-FLIGHT::R(B)
        • S(a);N_GUARD::R(B)
        • S(a);SBLOCK::R1(B)
      • Refutation
        • S(a);
    • Try
      • R(B);
      • Vars
        • K(b);P-FLIGHT::R1(C)
        • S(a);N_GUARD::R(B)
        • S(a);SBLOCK::R1(B)
      • Refutation
        • S(a);
  • Actual
    • B(D);
    • Threat
      • B(D)
    • Vars
      • S(a);SBLOCK::R1(B)
      • S(a);SBLOCK::R1(C)
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