MESON Chess Problem Database

Problem Display
PID: 171035 (1qB5/1p6/3r1n2/2R2ppr/3BkPp1/4p2p/1Nn1Q2b/1b1R3K w - - 0 1)

Apro, Laszlo

Variantim, 1990

1qB5/1p6/3r1n2/2R2ppr/3BkPp1/4p2p/1Nn1Q2b/1b1R3K

#2

8 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf4
      • 2.Bxf5#
    • 1...Sa1
      • 2.Qxe3#
    • 1...Se1
      • 2.Qxe3#
    • 1...Sa3
      • 2.Qxe3#
    • 1...Sb4
      • 2.Qxe3#
    • 1...gxf4
      • 2.Re5#
  • Tries
    • 1.Qg2+?
      • 1...Kxf4
        • 2.Sd3#
        • 2.Be5#
        • 2.Rf1#
        • 2.Rxf5#
      • 1...hxg2+!
  • Keys
    • 1.Rf1!
      • threat
        • 2.Qd3#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Rxd4
        • 2.Bxf5#
      • 1...Sxd4
        • 2.Re5#
      • 1...Sa1
        • 2.Qxe3#
      • 1...Se1
        • 2.Qxe3#
      • 1...Sa3
        • 2.Qxe3#
      • 1...Sb4
        • 2.Qxe3#

This is a version of 172118

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(c);SBLOCK,XP(F)::B(H),XP(h)
    • S(b);N_GUARD::QAR1(D),XP(d)
    • P(i);SBLOCK,XP(F)::R1(G)
  • Tries
    • Try
      • Q(D);CHECK,N_PINP(d)
      • Refutation
        • P(e);CHECK,XQ(D)
  • Actual
    • R(A);
    • Threat
      • QAB1(D)
    • Vars
      • K(f);N_SPINP(d),OGATEB,P-FLIGHT,XB(E)::QAR1(D)
      • R(k);SBLOCK,XB(E)::B(H),XP(h)
      • S(b);SBLOCK,XB(E)::R1(G)
      • S(b);N_GUARD::QAR1(D),XP(d)
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).