MESON Chess Problem Database

Problem Display
PID: 106512 (n7/8/2K5/p2N4/2k1p3/1R1NP3/8/b2B3n w - - 0 1)

Formanek, Bedrich

Praca, 1951

n7/8/2K5/p2N4/2k1p3/1R1NP3/8/b2B3n

#2

6 + 6

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Sxb2#
    • 1...Bc3
      • 2.Rxc3#
    • 1...Be5
      • 2.Sxe5#
    • 1...Sb6
      • 2.Sxb6#
    • 1...Sc7
      • 2.Sb6#
  • Keys
    • 1.Rb2!
      • threat
        • 2.Se5#
      • 1...Kxd3
        • 2.Be2#
      • 1...Bxb2
        • 2.Sxb2#
      • 1...exd3
        • 2.Bb3#

This anticipates 110148(1997)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::S(C),XB(a)
    • B(a);N_GUARD::R1(B),XB(a)
    • S(f);N_GUARD::S(E),XS(f)
    • S(f);N_GUARD::S(E)
  • Actual
    • R(B);
    • Threat
      • S(C)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(C)::B(A)
      • B(a);XR(B)::S(C),XB(a)
      • P(d);SBLOCK,XS(C)::B(A)
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