MESON Chess Problem Database

Problem Display
PID: 192829 (n1BQ3B/2p4R/2pqP3/p1PkN1p1/4N1P1/2K3p1/8/4R3 w - - 0 1)

Rizzetti, Dante Hugo

Il Due Mosse, 1960

n1BQ3B/2p4R/2pqP3/p1PkN1p1/4N1P1/2K3p1/8/4R3

#2

11 + 8

16325 Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qd7
      • 2.Qxd7#
  • Tries
    • 1.Sg6?
      • threat
        • 2.Se7#
      • 1...Qd7
        • 2.Qxd7#
      • 1...Qxd8!
    • 1.Ba6?
      • threat
        • 2.Bc4#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Sb6!
    • 1.Rxc7?
      • threat
        • 2.Qxd6#
      • 1...Qd7
        • 2.Qxd7#
      • 1...Qxd8!
    • 1.Qxg5?
      • threat
        • 2.Qd2#
      • 1...Qxc5+
        • 2.Sc4#
      • 1...Qxe5+
        • 2.Qxe5#
      • 1...Qd7!
    • 1.cxd6?
      • threat
        • 2.dxc7#
      • 1...cxd6
        • 2.Qxd6#
      • 1...Sb6!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sef6#
      • 1...Qxc5+
        • 2.Sdxc5#
      • 1...Qe5+
        • 2.Sxe5#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Qxe6
        • 2.Sb6#
      • 1...Qxd7
        • 2.Qxd7#
      • 1...Qf4
        • 2.Se5#
        • 2.Sb6#
      • 1...Qe7
        • 2.Sb6#
      • 1...Qf8
        • 2.Sb6#
        • 2.Sxf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(f);OGATEB::QAR2(J),XQ(f)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • Q(f);OGATEB::QAR2(J),XQ(f)
      • Refutation
        • Q(f);N_SPINQ(f),XQ(J)
    • Try
      • B(I);
      • Threat
        • B(I)
      • Vars
        • K(c);N_SPINQ(f),OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • S(h);
    • Try
      • R(H);XP(g)
      • Threat
        • QAR1(J),XQ(f)
      • Vars
        • Q(f);OGATEB::QAR2(J),XQ(f)
      • Refutation
        • Q(f);N_SPINQ(f),XQ(J)
    • Try
      • Q(J);N_PINQ(f),XP(d)
      • Threat
        • QAR(J)
      • Vars
        • Q(f);CHECK,N_GUARD,XP(E)::QAR(J)+S(F)
        • Q(f);CHECK,OGATE,P_SPINQ(f),XS(F)::QAR1(J),XQ(f)
      • Refutation
        • Q(f);
    • Try
      • P(E);XQ(f)
      • Threat
        • QAR(J)+P(E),XP(g)
      • Vars
        • P(g);OGATE,P_SPINP(g),XP(E)::QAR1(J),XP(g)
      • Refutation
        • S(h);
  • Actual
    • S(F);N_PINQ(f)
    • Threat
      • S(C)
    • Vars
      • Q(f);CHECK,XP(E)::QAR(J)+S(F),XQ(f)
      • Q(f);CHECK::QAR(J)+S(F),XQ(f)
      • K(c);OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • Q(f);XP(G)::QAR(J)+S(F),DCHECK
      • Q(f);OGATE,P_SPINQ(f),XS(F)::QAR2(J),XQ(f)
      • Q(f);::QAR(J)+S(F),DCHECK
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