MESON Chess Problem Database

Problem Display
PID: 132140 (8/1p1b4/NP1k1Kn1/1n3p2/7Q/b1P5/6B1/8 w - - 0 1)

Benyovszki, Pal

Scacco!, 0000

8/1p1b4/NP1k1Kn1/1n3p2/7Q/b1P5/6B1/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qb4#
    • 1...Bb2
      • 2.Qb4#
    • 1...Bb4
      • 2.Qxb4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sa7
      • 2.Qd4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Se7
      • 2.Qf4#
    • 1...Sf8
      • 2.Qf4#
    • 1...Sh8
      • 2.Qf4#
  • Tries
    • 1.Qg3+?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Se5
        • 2.Qxe5#
      • 1...f4!
    • 1.Qh2+?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Se5
        • 2.Qxe5#
      • 1...f4!
    • 1.Qf4+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sxf4!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qd5#
      • 1...Sxc3
        • 2.Qc7#
      • 1...Bc6
        • 2.Qe6#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Se7
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • B(a);N_GUARD::QAB(C)
    • B(a);N_GUARD,P_PINP(B)::QAB(C)
    • B(a);N_GUARD::QAB(C),XB(a)
    • S(b);N_GUARD::QAR2(C),XS(b)
    • S(b);N_GUARD::QAR2(C)
    • S(e);N_GUARD::QAB(C),XS(e)
    • S(e);N_GUARD::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAB(C),XS(e)
        • S(e);N_GUARD,P_SPINS(e)::QAB1(C),XS(e)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(C);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAB(C),XS(e)
        • S(e);N_GUARD,P_SPINS(e)::QAB1(C),XS(e)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(C);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAB1(C),XS(e)
      • Refutation
        • S(e);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • S(b);N_GUARD,XP(B)::QAB1(C)
      • B(g);N_GUARD::QAR1(C)
      • B(g);N_GUARD::QAR1(C),XB(g)
      • S(b);N_GUARD::QAB1(C),XS(b)
      • S(e);N_GUARD::QAB(C),XS(e)
      • S(e);N_GUARD::QAB(C)
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).