MESON Chess Problem Database

Problem Display
PID: 44318 (6B1/7n/2p2P2/3Nk3/KQ2N2r/8/8/b4R2 w - - 0 1)

Gevers, Raymond

Comm., Providence Journal, 1946

6B1/7n/2p2P2/3Nk3/KQ2N2r/8/8/b4R2

#2

7 + 5

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1948

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qe7#
  • Tries
    • 1.Se3?
      • threat
        • 2.Rf5#
      • 1...Bd4
        • 2.Qe7#
      • 1...Rh5
        • 2.Sg4#
      • 1...Rf4!
    • 1.Qc3+?
      • 1...Kxe4
        • 2.Qe3#
      • 1...Bxc3!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sc3#
      • 1...Rxe4+
        • 2.Sb4#
      • 1...Kxe4
        • 2.Qe3#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...cxd5
        • 2.Qxd5#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Bd4
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR2(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(A)
      • Vars
        • B(a);SBLOCK::QAR2(C)
        • R(b);N_GUARD::S(E)
      • Refutation
        • R(b);
    • Try
      • Q(C);CHECK,P_SPINS(D)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(D)::QAR1(C)
      • Refutation
        • B(a);XQ(C)
  • Actual
    • Q(C);P_SPINS(D)
    • Threat
      • QAR(C)+S(E)
    • Vars
      • R(b);CHECK,SBLOCK,XS(D)::QAR(C)+S(E)
      • K(c);OGATEB,P-FLIGHT,XS(D)::QAR1(C)
      • S(e);XP(F)::QAR(C)+S(E),XS(e)
      • P(d);OGATE,P_SPINP(d),XS(E)::QAR1(C),XP(d)
      • B(a);::QAR(C)+S(E),XB(a)
      • B(a);N_PINS(D),SBLOCK::QAR2(C)
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Developed and maintained by Brian Stephenson.
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