MESON Chess Problem Database

Problem Display
PID: 46468 (8/8/8/8/K1N5/n7/1R2N3/k1n5 w - - 0 1)

Vladimirstsev, V

Leninskaya Smena, 1963

8/8/8/8/K1N5/n7/1R2N3/k1n5

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • 1...Sa2
        • 2.Sb3#
      • 1...Se2
        • 2.Sb3#
      • 1...Sb3
        • 2.Sxb3#
      • 1...Sd3
        • 2.Sb3#
      • 1...Sb1
        • 2.Sc2#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sb5
        • 2.Sc2#
      • 1...Sxc4!
  • Keys
    • 1.Sc3!
      • 1...Sxc4
        • 2.Rb1#
      • 1...Sa2
        • 2.Rxa2#
      • 1...Se2
        • 2.Ra2#
      • 1...Sb3
        • 2.Ra2#
      • 1...Sd3
        • 2.Ra2#
      • 1...Sb1
        • 2.Rxb1#
      • 1...Sc2
        • 2.Rb1#
      • 1...Sb5
        • 2.Rb1#

This anticipates 228782(1974)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • S(b);N_GUARD::S(B)
        • S(b);N_GUARD::S(B),XS(b)
        • S(c);N_GUARD::S(B)
        • S(c);N_GUARD::S(B),XS(c)
      • Refutation
        • S(c);XS(D)
  • Actual
    • S(B);
    • Vars
      • S(c);N_GUARD,XS(D)::R1(A)
      • S(b);N_GUARD::R1(A),XS(b)
      • S(b);N_GUARD::R1(A)
      • S(c);N_GUARD::R1(A),XS(c)
      • S(c);N_GUARD::R1(A)
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