MESON Chess Problem Database

Problem Display
PID: 47949 (2R1B1Kn/b5N1/3N1p2/r2k4/1p3Q2/2p2b2/4p3/3r4 w - - 0 1)

Groeneveld, Cornelis

1st HM., Het Reformatorisch Dagblad, 1998

2R1B1Kn/b5N1/3N1p2/r2k4/1p3Q2/2p2b2/4p3/3r4

#2

6 + 10

102 Probleemblad 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Bc6#
    • 1...Sg6
      • 2.Bf7#
    • 1...Sf7
      • 2.Bxf7#
  • Tries
    • 1.Qc4+?
      • 1...Kxd6
        • 2.Qe6#
      • 1...Ke5!
    • 1.Qe4+?
      • 1...Kxd6
        • 2.Rc6#
        • 2.Qe6#
      • 1...Bxe4!
    • 1.Qf5+?
      • 1...Kxd6
        • 2.Qe6#
      • 1...Kd4!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qc4#
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Be4
        • 2.Qd6#
      • 1...Rd4
        • 2.Qf5#
      • 1...Rc5
        • 2.Rd8#
      • 1...Bd4
        • 2.Qxf3#
      • 1...Bc5
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(i);SBLOCK::B(E)
    • S(j);N_GUARD::B(E)
    • S(j);N_GUARD::B(E),XS(j)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(g);OGATE,P-FLIGHT,XS(B)::QAR1(A)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • B(d);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(g);P-FLIGHT,XS(B)::QAR1(A)
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • S(j);OGATE,XS(B)::B(E),XS(j)
      • B(d);SBLOCK::QAR1(A)
      • R(a);SBLOCK::QAR2(A)
      • R(f);SBLOCK::R(D)
      • B(i);SBLOCK::QAB(A),XB(d)
      • B(i);SBLOCK::B(E)
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