MESON Chess Problem Database

Problem Display
PID: 86026 (6r1/8/2p5/2N5/7b/8/1p1pp3/1K1krb2 w - - 0 1)

Speckmann, Werner

Die Schwalbe, 1968

6r1/8/2p5/2N5/7b/8/1p1pp3/1K1krb2

#2

2 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sxb2#
      • 1...Bf6
        • 2.Sf2#
      • 1...Rb8!
    • 1.Sa4?
      • threat
        • 2.Sxb2#
        • 2.Sc3#
      • 1...Rg3
        • 2.Sxb2#
      • 1...Rb8
        • 2.Sc3#
      • 1...Bf6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc3#
      • 1...Rg3
        • 2.Sf2#
      • 1...Bf6
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B),XP(d)
      • Vars
        • B(g);N_GUARD::S(B)
      • Refutation
        • R(i);
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);::S(B),XP(d)
        • R(i);::S(B)
      • Refutation
        • B(g);
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • R(i);S_CUTB(g)::S(B)
      • B(g);N_GUARD::S(B)
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