MESON Chess Problem Database

Problem Display
PID: 231247 (5R2/1B6/K7/4N3/8/6p1/3pk1p1/1Q2bNrn w - - 0 1)

Schiffmann, Israel Abraham

Revista de Sah, 1927

5R2/1B6/K7/4N3/8/6p1/3pk1p1/1Q2bNrn

#2

6 + 7

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Bf3#
    • 1...d1Q
      • 2.Qe4#
    • 1...d1S
      • 2.Qd3#
      • 2.Qb5#
    • 1...d1B
      • 2.Qd3#
      • 2.Qe4#
      • 2.Qb5#
    • 1...d1R
      • 2.Qe4#
  • Tries
    • 1.Bf3+?
      • 1...Kf2
        • 2.Bd1#
        • 2.Bg4#
        • 2.Bh5#
      • 1...Kxf1!
  • Keys
    • 1.Sg4!
      • 1...Rxf1
        • 2.Re8#
      • 1...gxf1Q
        • 2.Re8#
      • 1...gxf1S
        • 2.Bf3#
      • 1...gxf1B
        • 2.Bf3#
        • 2.Re8#
      • 1...gxf1R
        • 2.Re8#
      • 1...Sf2
        • 2.Sxg3#
      • 1...d1Q
        • 2.Qe4#
      • 1...d1S
        • 2.Qb5#
      • 1...d1B
        • 2.Qe4#
        • 2.Qb5#
      • 1...d1R
        • 2.Qe4#
      • 1...Bf2
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::B(E)
    • P(d);SBLOCK::QAR2(A)
  • Tries
    • Try
      • B(E);CHECK
      • Refutation
        • K(e);P_SPINB(a),S_FLIGHT,XS(B)
  • Actual
    • S(C);
    • Vars
      • R(b);SBLOCK,XS(B)::R(F)
      • P(f);SBLOCK,XS(B)::R(F)
      • P(f);SBLOCK,XS(B)::B(E)
      • S(c);N_GUARD,S_CUTB(a)::S(B),XP(g)
      • P(d);SBLOCK::QAR2(A)
      • P(d);SBLOCK::QAB(A)
      • B(a);::B(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).