MESON Chess Problem Database

Problem Display
PID: 201477 (1Q6/q1PPK1P1/r3p2b/R1ppkppR/8/N2P2P1/1P5N/4n1B1 w - - 0 1)

Pasqualini, Giulio

L'Italia Scacchistica, 1922

1Q6/q1PPK1P1/r3p2b/R1ppkppR/8/N2P2P1/1P5N/4n1B1

#2

13 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Sf3#
    • 1...Sg2
      • 2.Sf3#
    • 1...Sf3
      • 2.Sxf3#
    • 1...c4
      • 2.Sxc4#
    • 1...g4
      • 2.Sxg4#
  • Tries
    • 1.Bd4+?
      • 1...cxd4
        • 2.Sc4#
      • 1...Kxd4!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qxe1#
      • 1...Sxd3
        • 2.Sf3#
      • 1...cxb4
        • 2.Sc4#
      • 1...d4
        • 2.Qxd4#
      • 1...f4
        • 2.Qxf4#
      • 1...Sc2
        • 2.Sf3#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...c4
        • 2.Sxc4#
      • 1...g4
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • P(b);P_SPINP(c)::S(D),XP(b)
    • P(f);P_SPINP(e)::S(C),XP(f)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • P(b);P_SPINP(c),SBLOCK,XB(A)::S(D)
      • Refutation
        • K(d);S_FLIGHT,XB(A)
  • Actual
    • Q(M);
    • Threat
      • QAR(M),XS(a)
    • Vars
      • S(a);N_GUARD,XP(E)::S(C)
      • P(b);P_SPINP(c),XQ(M)::S(D)
      • P(c);P_SPINP(b)::QAB1(M),XP(c)
      • P(e);P_SPINP(f)::QAB1(M),XP(e)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
      • P(b);P_SPINP(c)::S(D),XP(b)
      • P(f);P_SPINP(e)::S(C),XP(f)
HTML5 logo

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).