MESON Chess Problem Database

Problem Display
PID: 48965 (B1R4K/b7/8/2nRQp2/6pN/6B1/1r1PN3/1b5k w - - 0 1)

Wenda, Klaus

Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1978-1979

B1R4K/b7/8/2nRQp2/6pN/6B1/1r1PN3/1b5k

#2

9 + 7

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Rdxc5#
    • 1...Sb3
      • 2.Rd3#
    • 1...Sd3
      • 2.Rb5#
  • Tries
    • 1.Qd4?
      • threat
        • 2.Qg1#
      • 1...Sd3
        • 2.Rb5#
      • 1...Sa4
        • 2.Rc1#
      • 1...Se4
        • 2.Rc1#
      • 1...Sa6
        • 2.Rc1#
      • 1...Se6
        • 2.Rc1#
      • 1...Sb7
        • 2.Rc1#
      • 1...Sd7
        • 2.Rc1#
      • 1...Sb3!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qg1#
      • 1...Sb3
        • 2.Rd3#
      • 1...Sd3
        • 2.Rb5#
      • 1...Sa4
        • 2.Rc1#
      • 1...Se4
        • 2.Rc1#
      • 1...Sa6
        • 2.Rc1#
      • 1...Se6
        • 2.Rc1#
      • 1...Sb7
        • 2.Rc1#
      • 1...Sd7
        • 2.Rc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,S_CUTB(a)::B(G)+R(E),XS(e)
    • S(e);N_GUARD,S_CUTR(c)::B(G)+R(E)
    • S(e);OGATE::B(G)+R(E)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • S(e);OGATE::B(G)+R(E)
        • S(e);OGATE::R(H)
      • Refutation
        • S(e);
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • S(e);N_GUARD,S_CUTR(c)::B(G)+R(E)
      • S(e);OGATE::B(G)+R(E)
      • S(e);OGATE::R(H)
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