MESON Chess Problem Database

Problem Display
PID: 6058 (6b1/2qp4/1PPP2Q1/3k4/1pR2b1r/4pN1p/1N2K3/8 w - - 0 1)

Schiffmann, Israel Abraham

4th Prize, Revista de Sah, 1926

6b1/2qp4/1PPP2Q1/3k4/1pR2b1r/4pN1p/1N2K3/8

#2

8 + 9

1397 Faszinierendes Schachproblem 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6
      • 2.Qe4#
    • 1...Bxd6
      • 2.Qxg8#
    • 1...Be6
      • 2.Qd3#
  • Tries
    • 1.Qf5+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Kxd6!
  • Keys
    • 1.Sa4!
      • threat
        • 2.Rc5#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Qxb6
        • 2.Sxb6#
      • 1...Qxd6
        • 2.Qe4#
      • 1...Qxc6
        • 2.Rd4#
      • 1...Bxd6
        • 2.Qxg8#
      • 1...Be6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(g);SBLOCK,XP(G)::QAB1(H)
    • B(d);SBLOCK,XP(G)::QAB(H),XB(i)
    • B(i);SBLOCK::QAR2(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::QAR1(H),XB(d)
      • Refutation
        • K(f);P-FLIGHT,XP(G)
  • Actual
    • S(A);
    • Threat
      • R1(D)
    • Vars
      • K(f);S_FLIGHT,XR(D)::QAB1(H)
      • Q(g);XP(E)::S(A),XQ(g)
      • Q(g);SBLOCK,XP(G)::QAB1(H)
      • Q(g);SBLOCK,XP(F)::R1(D)
      • B(d);SBLOCK,XP(G)::QAB(H),XB(i)
      • B(i);SBLOCK::QAR2(H)
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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).