MESON Chess Problem Database

Problem Display
PID: 108587 (8/3K3p/3Pp3/2b1k2N/6P1/1nRQqB2/2n1N3/8 w - - 0 1)

Kapros, Jorge Marcelo

Rizzetti, Dante Hugo

Arguelles-80 JT, 1983

8/3K3p/3Pp3/2b1k2N/6P1/1nRQqB2/2n1N3/8

#2

8 + 7

6490 yacpdb 2009
16325 Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Qe4#
    • 1...Qg1
      • 2.Qe4#
    • 1...Qd2
      • 2.Qe4#
    • 1...Qf2
      • 2.Qe4#
    • 1...Qg5
      • 2.Qe4#
    • 1...Qh6
      • 2.Qe4#
    • 1...Qe4
      • 2.Qxe4#
    • 1...Bxd6
      • 2.Qxd6#
    • 1...Scd4
      • 2.Qxe3#
    • 1...Sbd4
      • 2.Rxc5#
  • Tries
    • 1.Rxc5+?
      • 1...Qxc5
        • 2.Qe4#
      • 1...Sxc5+!
    • 1.Qg6?
      • threat
        • 2.Qxe6#
        • 2.Qf6#
        • 2.Qg7#
      • 1...Qxe2
        • 2.Qf6#
        • 2.Qg7#
      • 1...Qxf3
        • 2.Qxe6#
      • 1...Qe4
        • 2.Qxe4#
        • 2.Qxe6#
      • 1...Qf4
        • 2.Qxe6#
      • 1...Qg5
        • 2.Qe4#
        • 2.Qxg5#
        • 2.Qxe6#
      • 1...Qh6
        • 2.Qe4#
      • 1...Scd4
        • 2.Rxe3#
        • 2.Qf6#
        • 2.Qg7#
      • 1...Sbd4
        • 2.Rxc5#
        • 2.Qf6#
        • 2.Qg7#
      • 1...hxg6!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qxe6#
      • 1...Qxe2
        • 2.Qf4#
      • 1...Qh6
        • 2.Qe4#
      • 1...Scd4
        • 2.Rxe3#
      • 1...Sbd4
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::QAR1(C)
    • Q(c);N_GUARD::QAR1(C),XQ(c)
    • B(d);OGATE,XP(G)::QAB1(C),XB(d)
    • S(a);N_GUARD,S_CUTB(d)::QAR2(C),XQ(c)
    • S(b);N_GUARD,S_CUTQ(c)::R(B),XB(d)
  • Tries
    • Try
      • R(B);CHECK,XB(d)
      • Vars
        • Q(c);XR(B)::QAR1(C)
      • Refutation
        • S(b);CHECK,XR(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);XB(D)::QAR1(C),XP(f)
        • Q(c);::QAR1(C),XP(f)
        • Q(c);N_GUARD::QAR1(C)
      • Refutation
        • P(g);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XP(f)
    • Vars
      • Q(c);N_GUARD,XS(A)::QAB1(C)
      • Q(c);N_GUARD::QAR1(C)
      • S(a);N_GUARD,S_CUTB(d)::R(B),XQ(c)
      • S(b);N_GUARD,S_CUTQ(c)::QAR2(C),XB(d)
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