MESON Chess Problem Database

Problem Display
PID: 52874 (4K3/4R2p/2p2P2/N3n1R1/1P1k3r/2p1r3/2pb2B1/n2QN1B1 w - - 0 1)

Servais, Albert

2nd Prize=, La Bataille, 1948

4K3/4R2p/2p2P2/N3n1R1/1P1k3r/2p1r3/2pb2B1/n2QN1B1

#2

10 + 10

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Sf3#
    • 1...Sf3
      • 2.Bxe3#
    • 1...Sc4
      • 2.Sxc6#
    • 1...Sg4
      • 2.Re4#
    • 1...Sg6
      • 2.Bxe3#
    • 1...Sd7
      • 2.Bxe3#
    • 1...Sf7
      • 2.Bxe3#
  • Tries
    • 1.Qg4+?
      • 1...Sxg4
        • 2.Re4#
      • 1...Rxg4!
    • 1.Qxd2+?
      • 1...Sd3
        • 2.Sf3#
        • 2.Bxe3#
        • 2.Qxe3#
        • 2.Qxd3#
      • 1...cxd2!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rd6#
      • 1...Sd3
        • 2.Sf3#
      • 1...Sf3
        • 2.Bxe3#
      • 1...Sc4
        • 2.Sxc6#
      • 1...Sg4
        • 2.Re4#
      • 1...Sg6
        • 2.Bxe3#
      • 1...Sd7
        • 2.Bxe3#
      • 1...Sf7
        • 2.Bxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD,N_SPINB(c),P_PINR(I),SBLOCK::S(B)
    • S(h);P_PINR(I)::B(C),XR(e)
    • S(h);N_GUARD,P_PINR(I),SBLOCK::S(F),XP(i)
    • S(h);OGATE,P_PINR(I)::R1(I)
  • Tries
    • Try
      • Q(A);CHECK,N_PINB(c)
      • Vars
        • S(h);OGATE,P_PINR(I),XQ(A)::R1(I)
      • Refutation
        • R(g);XQ(A)
    • Try
      • Q(A);CHECK,XB(c)
      • Refutation
        • P(d);XQ(A)
  • Actual
    • R(I);
    • Threat
      • R(I)
    • Vars
      • S(h);N_GUARD,N_SPINB(c),P_PINR(I),SBLOCK::S(B)
      • S(h);P_PINR(I)::B(C),XR(e)
      • S(h);N_GUARD,P_PINR(I),SBLOCK::S(F),XP(i)
      • S(h);OGATE,P_PINR(I)::R1(I)
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Developed and maintained by Brian Stephenson.
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