MESON Chess Problem Database

Problem Display
PID: 178045 (2r5/1np2NB1/rQp4R/pppk2KR/P2P1Ppp/3P4/2P5/3bb3 w - - 0 1)

Belliboni, Caetano

2nd Comm., Boletim da UBP, 1988-1989

2r5/1np2NB1/rQp4R/pppk2KR/P2P1Ppp/3P4/2P5/3bb3

#2

11 + 13

1077 Boletim da UBP 1990
1077 Boletim da UBP 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.Qxc6#
    • 1...Raa8
      • 2.Qxc6#
    • 1...Bxc2
      • 2.Kxg4#
    • 1...Bd2
      • 2.Kxh4#
    • 1...Bc3
      • 2.Kxh4#
    • 1...Bb4
      • 2.Kxh4#
    • 1...Sd6
      • 2.Qxc5#
    • 1...Sd8
      • 2.Qxc5#
    • 1...bxa4
      • 2.c4#
    • 1...cxd4
      • 2.Kf6#
      • 2.Qxd4#
    • 1...c4
      • 2.Kf6#
  • Tries
    • 1.Qxb5?
      • threat
        • 2.Qc4#
        • 2.c4#
      • 1...Bxc2
        • 2.Kxg4#
        • 2.Qc4#
      • 1...Bc3
        • 2.Kxh4#
        • 2.Qc4#
      • 1...Sd6
        • 2.Qxc5#
      • 1...cxb5!
  • Keys
    • 1.axb5!
      • threat
        • 2.c4#
      • 1...Bxc2
        • 2.Kxg4#
      • 1...cxd4
        • 2.Kf6#
        • 2.Qxd4#
      • 1...cxb5
        • 2.Kg6#
      • 1...Bc3
        • 2.Kxh4#
      • 1...Sd6
        • 2.Qxc5#
      • 1...c4
        • 2.Kf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(i);N_GUARD::QAB1(H),XP(j)
    • B(a);XP(A)::R(G)+K(F),XP(c)
    • B(b);P_PINP(E)::R(G)+K(F),XP(d)
    • B(b);::R(G)+K(F),XP(d)
    • S(k);N_GUARD::QAR1(H),XP(g)
    • P(f);N_GUARD,XP(C)::P(A)
    • P(g);::R(G)+K(F)
  • Tries
    • Try
      • Q(H);P_PINP(g),XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(k);N_GUARD::QAR1(H),XP(g)
      • Refutation
        • P(j);N_SPINP(g),XQ(H)
  • Actual
    • P(C);XP(f)
    • Threat
      • P(A)
    • Vars
      • B(a);XP(A)::R(G)+K(F),XP(c)
      • P(j);XP(C)::R(G)+K(F)
      • B(b);::R(G)+K(F),XP(d)
      • S(k);N_GUARD::QAR1(H),XP(g)
      • P(g);::R(G)+K(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).