MESON Chess Problem Database

Problem Display
PID: 265516 (2b1nN2/2np4/4r3/2B1k3/8/2N5/8/R3KR2 w Q - 0 1)

Racz, Erich

Die Schwalbe, 1972

2b1nN2/2np4/4r3/2B1k3/8/2N5/8/R3KR2

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Sxd7#
    • 1...Bb7
      • 2.Sxd7#
    • 1...Sf6
      • 2.Sg6#
  • Tries
    • 1.Ra4?
      • threat
        • 2.Re4#
      • 1...Bb7
        • 2.Sxd7#
      • 1...Sd6
        • 2.Bd4#
      • 1...Sf6
        • 2.Sg6#
      • 1...d5!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Rde1#
      • 1...Ba6
        • 2.Sxd7#
      • 1...Bb7
        • 2.Sxd7#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sd6
        • 2.Bd4#
      • 1...Sf6
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD::S(F),XP(d)
    • S(f);S_CUTR(b)::S(F)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • B(e);N_GUARD::S(F),XP(d)
        • S(f);SBLOCK::B(E)
        • S(f);S_CUTR(b)::S(F)
      • Refutation
        • P(d);
  • Actual
    • K(B);0-0-0
    • Threat
      • R(A)
    • Vars
      • B(e);N_GUARD::S(F),XP(d)
      • S(c);N_GUARD::R1(A),XS(c)
      • S(f);SBLOCK::B(E)
      • S(f);S_CUTR(b)::S(F)
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