MESON Chess Problem Database

Problem Display
PID: 175638 (8/4Q1R1/3p3p/RBp2n1P/3B1k2/8/6K1/8 w - - 0 1)

Rottenberg, Henrik

Pesti Naplo, 1900

8/4Q1R1/3p3p/RBp2n1P/3B1k2/8/6K1/8

#2

7 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qe5#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Qe4#
      • 1...Se3+
        • 2.Bxe3#
        • 2.Qxe3#
      • 1...Sh4+
        • 2.Qxh4#
      • 1...Sxg7
        • 2.Qh4#
      • 1...Sg3
        • 2.Be3#
        • 2.Qh4#
        • 2.Qxd6#
        • 2.Qe3#
      • 1...d5
        • 2.Qe5#
      • 1...Sxe7!
    • 1.Qxd6+?
      • 1...Ke4
        • 2.Rg4#
        • 2.Qe5#
      • 1...Sxd6!
  • Keys
    • 1.Bd7!
      • 1...Se3+
        • 2.Bxe3#
        • 2.Qxe3#
      • 1...Sh4+
        • 2.Qxh4#
      • 1...Sxd4
        • 2.Rg4#
      • 1...Sxe7
        • 2.Rg4#
      • 1...Sxg7
        • 2.Be3#
        • 2.Qh4#
        • 2.Qe3#
      • 1...cxd4
        • 2.Rxf5#
      • 1...Sg3
        • 2.Be3#
        • 2.Rg4#
        • 2.Qh4#
        • 2.Qe3#
      • 1...c4
        • 2.Rxf5#
      • 1...d5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::QAB1(F)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(F)
      • Vars
        • S(c);CHECK,N_GUARD::QAR2(F),XS(c)
        • S(c);N_GUARD,XR(G)::QAR2(F)
        • P(d);N_GUARD::QAB1(F)
      • Refutation
        • S(c);XQ(F)
    • Try
      • Q(F);CHECK,XP(d)
      • Refutation
        • S(c);XQ(F)
  • Actual
    • B(D);
    • Vars
      • S(c);CHECK,N_GUARD::QAR2(F),XS(c)
      • S(c);XB(B)::R1(G)
      • S(c);XQ(F)::R1(G)
      • P(b);OGATE,XB(B)::R1(C),XS(c)
      • P(b);OGATE::R1(C),XS(c)
      • P(d);N_GUARD::QAB1(F)
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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).