MESON Chess Problem Database

Problem Display
PID: 174339 (2RBR3/3p2p1/1p1k4/6P1/1npPPnKp/3p2p1/8/6Q1 w - - 0 1)

Piatesi, Antonio

Boletim da UBP, 1987

2RBR3/3p2p1/1p1k4/6P1/1npPPnKp/3p2p1/8/6Q1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sbd5
      • 2.e5#
    • 1...Sc6
      • 2.Bc7#
    • 1...Sfd5
      • 2.e5#
    • 1...Se6
      • 2.Be7#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qxf4#
      • 1...Sc6
        • 2.Bc7#
      • 1...Sbd5
        • 2.e5#
      • 1...Se2
        • 2.Qf8#
      • 1...Sg2
        • 2.Qf8#
      • 1...Sh3
        • 2.Qf8#
      • 1...Sfd5
        • 2.e5#
      • 1...Sh5
        • 2.Qf8#
      • 1...Se6
        • 2.Be7#
      • 1...Sg6!
    • 1.Qxg3?
      • threat
        • 2.Qxf4#
      • 1...Sc6
        • 2.Bc7#
      • 1...Sd5
        • 2.e5#
      • 1...hxg3!
    • 1.d5?
      • threat
        • 2.Bc7#
      • 1...Sbxd5
        • 2.e5#
      • 1...Sfxd5
        • 2.e5#
      • 1...Sa6
        • 2.Qxb6#
      • 1...Se6!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qxb4#
      • 1...Sc6
        • 2.Bc7#
      • 1...Sa2
        • 2.Qxb6#
      • 1...Sc2
        • 2.Qxb6#
      • 1...Sbd5
        • 2.e5#
      • 1...Sa6
        • 2.Qxb6#
      • 1...Sfd5
        • 2.e5#
      • 1...Se6
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);SBLOCK::P(C)
    • S(c);SBLOCK::B(G)
    • S(e);SBLOCK::P(C)
    • S(e);SBLOCK::B(G)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A),XS(e)
      • Vars
        • S(c);SBLOCK::B(G)
        • S(c);SBLOCK::P(C)
        • S(e);OGATE::QAB(A)
        • S(e);SBLOCK::P(C)
        • S(e);SBLOCK::B(G)
      • Refutation
        • S(e);
    • Try
      • Q(A);P_PINS(e),XP(b)
      • Threat
        • QAB(A),XS(e)
      • Vars
        • S(c);SBLOCK::B(G)
        • S(c);SBLOCK::P(C)
      • Refutation
        • P(f);N_SPINS(e),XQ(A)
    • Try
      • P(B);
      • Threat
        • B(G)
      • Vars
        • S(c);SBLOCK,XP(B)::P(C)
        • S(e);SBLOCK,XP(B)::P(C)
        • S(c);N_GUARD::QAR2(A),XP(g)
      • Refutation
        • S(e);
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XS(c)
    • Vars
      • S(c);SBLOCK::B(G)
      • S(c);OGATE::QAR2(A),XP(g)
      • S(c);SBLOCK::P(C)
      • S(e);SBLOCK::P(C)
      • S(e);SBLOCK::B(G)
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).