MESON Chess Problem Database

Problem Display
PID: 123740 (8/8/P3p3/1b6/k1P5/1N1P3Q/K1N5/8 w - - 0 1)

Rizzetti, Dante Hugo

Boletim da UBP, 1967

8/8/P3p3/1b6/k1P5/1N1P3Q/K1N5/8

#2

7 + 3

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

SOLUTION

  • SOUND
  • Tries
    • 1.Qh5?
      • threat
        • 2.Qxb5#
      • 1...Bxc4
        • 2.Qa5#
      • 1...Bxa6
        • 2.Qa5#
      • 1...Bc6
        • 2.Qa5#
      • 1...Bd7
        • 2.Qa5#
      • 1...Be8
        • 2.Qxe8#
        • 2.Qa5#
      • 1...e5!
  • Keys
    • 1.Qxe6!
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Bxa6
        • 2.Qxa6#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bd7
        • 2.Qxd7#
      • 1...Be8
        • 2.Qxe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB1(E),XB(b)
      • Vars
        • B(b);OGATE,P_PINS(C),XP(F)::QAR1(E)
        • B(b);OGATE,XP(G)::QAR1(E)
        • B(b);OGATE::QAR1(E)
      • Refutation
        • P(c);
  • Actual
    • Q(E);XP(c)
    • Vars
      • B(b);OGATE,P_PINS(C),XP(F)::QAR2(E),XB(b)
      • B(b);OGATE,XP(G)::QAR2(E),XB(b)
      • B(b);OGATEB::QAB(E),XB(b)
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