MESON Chess Problem Database

Problem Display
PID: 49241 (8/7B/4p3/1KN1Nq2/2QB4/p7/6p1/rk3bR1 w - - 0 1)

Rizzetti, Dante Hugo

Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1979-1980

8/7B/4p3/1KN1Nq2/2QB4/p7/6p1/rk3bR1

#2

7 + 7

5110 Bekroonde Problemen 2002
16325 Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Bxd3#
    • 1...Qe4
      • 2.Bxe4#
    • 1...Qg6
      • 2.Bxg6#
  • Tries
    • 1.Sed3?
      • threat
        • 2.Qb3#
      • 1...Qxc5+
        • 2.Sxc5#
      • 1...Qxd3
        • 2.Bxd3#
      • 1...Ra2
        • 2.Qc1#
      • 1...Qf2
        • 2.Sxf2#
      • 1...Qd5!
  • Keys
    • 1.Scd3!
      • threat
        • 2.Qb3#
      • 1...Qxe5+
        • 2.Sxe5#
      • 1...Qxd3
        • 2.Bxd3#
      • 1...Ra2
        • 2.Qc1#
      • 1...Qf2
        • 2.Sxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(f);OGATE::B(G),XQ(f)
    • Q(f);OGATEB::B(G),XQ(f)
  • Tries
    • Try
      • S(F);N_PINQ(f),N_SPINQ(B),P_SPINS(E)
      • Threat
        • QAR2(B)
      • Vars
        • Q(f);CHECK,XS(E)::B(G)+S(F),XQ(f)
        • Q(f);N_PINS(E),OGATE,P_PINQ(B),P_SPINQ(f),XS(F)::B(G),XQ(f)
        • R(a);SBLOCK::QAR1(B)
        • Q(f);N_PINS(E)::B(G)+S(F),XQ(f)
      • Refutation
        • Q(f);
  • Actual
    • S(E);N_PINQ(f),N_SPINQ(B),P_SPINS(F)
    • Threat
      • QAR2(B)
    • Vars
      • Q(f);CHECK,XS(F)::B(G)+S(E),XQ(f)
      • Q(f);N_PINS(F),OGATE,P_PINQ(B),P_SPINQ(f),XS(E)::B(G),XQ(f)
      • R(a);SBLOCK::QAR1(B)
      • Q(f);N_PINS(F)::B(G)+S(E),XQ(f)
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