MESON Chess Problem Database

Problem Display
PID: 7723 (2R3B1/8/8/8/3pN3/3knK2/8/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Die Schwalbe, 1993

2R3B1/8/8/8/3pN3/3knK2/8/8

#2

4 + 3

2838 Fun with Chess Miniatures 1996
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Bc4#
  • Tries
    • 1.Bb3?
      • 1...Sd1
        • 2.Bc2#
      • 1...Sf1
        • 2.Bc2#
      • 1...Sc2
        • 2.Bxc2#
        • 2.Bc4#
      • 1...Sg2
        • 2.Bc2#
      • 1...Sg4
        • 2.Bc2#
      • 1...Sd5
        • 2.Bc2#
      • 1...Sf5
        • 2.Bc2#
      • 1...Sc4!
    • 1.Rc1?
      • 1...Sd1
        • 2.Bc4#
      • 1...Sf1
        • 2.Bc4#
      • 1...Sc2
        • 2.Rd1#
      • 1...Sg2
        • 2.Bc4#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sg4
        • 2.Bc4#
      • 1...Sf5
        • 2.Bc4#
      • 1...Sd5!
  • Keys
    • 1.Ba2!
      • 1...Sc4
        • 2.Bb1#
      • 1...Sd1
        • 2.Bb1#
      • 1...Sf1
        • 2.Bb1#
      • 1...Sc2
        • 2.Bc4#
      • 1...Sg2
        • 2.Bb1#
      • 1...Sg4
        • 2.Bb1#
      • 1...Sd5
        • 2.Bb1#
      • 1...Sf5
        • 2.Bb1#

Anticipated by 3212(1985-1986)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK::B(D)
  • Tries
    • Try
      • B(D);
      • Vars
        • S(b);N_GUARD::B(D)
      • Refutation
        • S(b);
    • Try
      • R(C);
      • Vars
        • S(b);N_GUARD::B(D)
        • S(b);N_GUARD,SBLOCK::R(C)
        • S(b);N_GUARD::B(D),XS(b)
      • Refutation
        • S(b);
  • Actual
    • B(D);
    • Vars
      • S(b);N_GUARD::B(D)
      • S(b);N_GUARD,SBLOCK::B(D)
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