MESON Chess Problem Database

Problem Display
PID: 161017 (8/7b/2P1p3/3rk1P1/2PNr3/Q3b1P1/1B1qRNK1/8 w - - 0 1)

de Vos, G

Probleemblad, 1979

8/7b/2P1p3/3rk1P1/2PNr3/Q3b1P1/1B1qRNK1/8

#2

10 + 7

15611 Schaak-composities 1975-1979 (de Vuyst) 1982

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sd3#
    • 1...Qe1
      • 2.Sd3#
    • 1...Qa5
      • 2.Sd3#
    • 1...Qd3
      • 2.Sxd3#
    • 1...Rxd4
      • 2.Qc5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Bf4
      • 2.Sg4#
    • 1...Bxg5
      • 2.Sg4#
    • 1...Bf5
      • 2.Sf3#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Sf3#
      • 1...Qxd4
        • 2.Sd3#
      • 1...Rexd4
        • 2.Qf4#
      • 1...Rdxd4
        • 2.Qc5#
      • 1...Bxd4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::S(C)
    • Q(a);N_GUARD::S(C),XQ(a)
    • R(d);OGATEB,P_SPINR(d),XS(H)::QAR2(E)
    • R(d);OGATEB::QAR2(E),XR(d)
    • B(b);P_SPINR(c)::S(C)
    • B(b);P_SPINR(c),XP(I)::S(C)
    • B(g);SBLOCK::B(A)+S(H),DCHECK
  • Actual
    • Q(E);
    • Threat
      • B(A)+S(H),DCHECK
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XS(H)::S(C)
      • R(c);N_GUARD,P_SPINB(b),P_SPINR(c),XS(H)::QAB1(E)
      • R(d);OGATEB,P_SPINR(d),XS(H)::QAR2(E)
      • B(b);P_SPINB(b),P_SPINR(c),XS(H)::S(C)
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Developed and maintained by Brian Stephenson.
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