MESON Chess Problem Database

Problem Display
PID: 30945 (6N1/1K2B1n1/4pp2/1N1k4/2pPp3/5rb1/7Q/8 w - - 0 1)

Siberdt, Rene

3rd Prize, Lefebvre MT, 1943

6N1/1K2B1n1/4pp2/1N1k4/2pPp3/5rb1/7Q/8

#2

6 + 8

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1947
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1950

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Sxf6#
    • 1...Rb3
      • 2.Sxf6#
    • 1...Rc3
      • 2.Sxf6#
    • 1...Rd3
      • 2.Sxf6#
    • 1...Re3
      • 2.Sxf6#
    • 1...Be1
      • 2.Qd6#
    • 1...Bf2
      • 2.Qd6#
    • 1...Bf4
      • 2.Sxf6#
    • 1...Bh4
      • 2.Qd6#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Sf5
      • 2.Sxf6#
    • 1...c3
      • 2.Qa2#
    • 1...f5
      • 2.Sf6#
  • Keys
    • 1.Bc5!
      • threat
        • 2.Se7#
      • 1...c3
        • 2.Qa2#
      • 1...e3
        • 2.Sc3#
      • 1...e5
        • 2.Sc7#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sf5
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • R(a);N_GUARD::S(F),XP(g)
    • R(a);N_GUARD,P_PINS(C)::S(F),XP(g)
    • B(b);OGATE::QAR1(A)
    • B(b);S_CUTR(a)::S(F),XP(g)
    • B(b);OGATE::QAR1(A),XB(b)
    • S(h);S_CUTR(a)::S(F),XP(g)
    • P(c);OGATEB::QAB(A)
    • P(g);S_CUTR(a)::S(F)
  • Actual
    • B(E);
    • Threat
      • S(F)
    • Vars
      • P(c);OGATEB::QAB(A)
      • P(d);S_CUTR(a)::S(C)
      • P(f);S_CUTB(b)::S(C)
      • B(b);OGATE::QAR1(A),XB(b)
      • S(h);S_CUTR(a)::S(F),XP(g)
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