MESON Chess Problem Database

Problem Display
PID: 208195 (8/3K1p2/3p4/3kP3/P2b1P2/3Q4/1Bn3R1/8 w - - 0 1)

Fleischmann, Simon

Detroit Free Press, 1875

8/3K1p2/3p4/3kP3/P2b1P2/3Q4/1Bn3R1/8

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb5#
    • 1...Sa1
      • 2.Qxd4#
    • 1...Se1
      • 2.Qxd4#
    • 1...Sa3
      • 2.Qxd4#
    • 1...Se3
      • 2.Qxd4#
    • 1...Sb4
      • 2.Qxd4#
  • Tries
    • 1.Qb3+?
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke4!
  • Keys
    • 1.Rg5!
      • 1...Kc5
        • 2.Qb5#
      • 1...dxe5
        • 2.Rxe5#
      • 1...f5
        • 2.exf5 ep#
      • 1...Sa1
        • 2.Qxd4#
      • 1...Se1
        • 2.Qxd4#
      • 1...Sa3
        • 2.Qxd4#
      • 1...Se3
        • 2.Qxd4#
      • 1...Sb4
        • 2.Qxd4#
      • 1...f6
        • 2.exf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(b),P-FLIGHT::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XB(b)
  • Tries
    • Try
      • Q(C);CHECK,N_PINB(b)
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(c);N_SPINB(b),P-FLIGHT::QAR1(C)
      • P(d);OGATE,P_SPINP(d),XP(F)::R1(B),XP(d)
      • P(e);OGATE::R(B)+P(F),XP(e),EP
      • S(a);N_GUARD::QAR1(C),XB(b)
      • P(e);OGATE::R(B)+P(F),XP(e)
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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).