MESON Chess Problem Database

Problem Display
PID: 227559 (1Q6/3p1K2/q2P4/P2k1N2/3P1b2/N3p3/2P1P3/8 w - - 0 1)

Rovere, Vittorio

Il Secolo, 1926

1Q6/3p1K2/q2P4/P2k1N2/3P1b2/N3p3/2P1P3/8

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Se7#
    • 1...Qxe2
      • 2.Qb7#
      • 2.Qa8#
    • 1...Qd3
      • 2.Qb7#
      • 2.Qa8#
    • 1...Qb7
      • 2.Qxb7#
    • 1...Qxa5
      • 2.Qb7#
    • 1...Qa8
      • 2.Qxa8#
  • Tries
    • 1.c4+?
      • 1...Ke4
        • 2.Qb1#
      • 1...Kc6
        • 2.Se7#
        • 2.Qc7#
      • 1...Qxc4!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qh1#
      • 1...Ke4
        • 2.c4#
      • 1...Kc6
        • 2.Qh1#
      • 1...Qxe2
        • 2.Qb7#
      • 1...Qd3
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(c);S_FLIGHT::S(F)
    • Q(d);N_GUARD::QAB(I),XQ(d)
    • Q(d);N_GUARD,XP(E)::QAB(I)
  • Tries
    • Try
      • P(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(I)
      • Refutation
        • Q(d);XP(A)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • K(c);S_FLIGHT::QAB(I)+P(A)
      • K(c);S_FLIGHT::QAB(I)
      • Q(d);N_GUARD,XP(B)::QAB(I)
      • Q(d);N_GUARD::QAB(I)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).