MESON Chess Problem Database

Problem Display
PID: 147614 (n2B4/1N6/4Q3/1k2p2R/pbp5/qb1N3K/p7/1R6 w - - 0 1)

Goldschmidt, Ervin

64 Shakhmatnoe obozrenie, 1929

n2B4/1N6/4Q3/1k2p2R/pbp5/qb1N3K/p7/1R6

#2

7 + 9

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Rxe5#
    • 1...Bc2
      • 2.Rxe5#
    • 1...Sb6
      • 2.Qxb6#
  • Tries
    • 1.Rh6?
      • threat
        • 2.Qd7#
        • 2.Qa6#
        • 2.Qc6#
        • 2.Qe8#
      • 1...cxd3
        • 2.Qa6#
        • 2.Qc6#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Be7
        • 2.Qd7#
        • 2.Qa6#
        • 2.Qc6#
      • 1...Sc7
        • 2.Qd7#
        • 2.Qb6#
        • 2.Qc6#
      • 1...c3
        • 2.Qa6#
        • 2.Qc6#
      • 1...Bd6!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qc6#
      • 1...Bd1+
        • 2.Sf3#
      • 1...Bc2+
        • 2.Sd3#
      • 1...Be1
        • 2.Qxc4#
      • 1...Bd2
        • 2.Qxc4#
      • 1...Bc3
        • 2.Qxc4#
      • 1...Ba5
        • 2.Qxc4#
      • 1...Bc5
        • 2.Qxc4#
      • 1...Bd6
        • 2.Qxc4#
      • 1...Be7
        • 2.Qxc4#
      • 1...Bf8
        • 2.Qxc4#
      • 1...Sb6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(c);P_PINS(B),P_SPINB(e)::R(D),XP(h)
    • S(i);N_GUARD::QAR1(E),XS(i)
  • Tries
    • Try
      • R(D);N_PINP(h)
      • Threat
        • DUALS(4)
      • Vars
        • S(i);N_GUARD::QAR1(E),XS(i)
      • Refutation
        • B(e);P_SPINB(c)
  • Actual
    • S(B);XP(h)
    • Threat
      • QAB1(E)
    • Vars
      • B(c);CHECK,P_SPINB(e)::R(D)+S(B)
      • B(e);P_SPINB(c)::QAB1(E),XP(f)
      • S(i);N_GUARD::QAR1(E),XS(i)
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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).