MESON Chess Problem Database

Problem Display
PID: 263800 (7Q/5b2/3pP1p1/1N1k4/1n1b4/1P3RNK/3r2B1/3R2B1 w - - 0 1)

Neumann, Itzhak

Tijdschrift vd NSB, 1932

7Q/5b2/3pP1p1/1N1k4/1n1b4/1P3RNK/3r2B1/3R2B1

#2

10 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Re3#
    • 1...Be5
      • 2.Rf6#
    • 1...Bxe6+
      • 2.Rf5#
  • Tries
    • 1.Rc3+?
      • 1...Rxg2
        • 2.Sc7#
      • 1...Kxe6!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qxd6#
      • 1...Bxe6+
        • 2.Rf5#
      • 1...Kc5
        • 2.Rc3#
      • 1...Ke5
        • 2.Qxd6#
      • 1...Kc6
        • 2.Rc3#
      • 1...Kxe6
        • 2.Qxd6#
      • 1...Bc5
        • 2.Re3#
      • 1...Be5
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(c);P_SPINR(a),SBLOCK::B(C)+R(E)
    • B(g);CHECK,SBLOCK,XP(I)::B(C)+R(E),DCHECK
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • R(a);P_SPINB(c),XB(C)::S(H)
      • Refutation
        • K(d);S_FLIGHT,XP(I)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J),XP(e)
    • Vars
      • B(g);CHECK,SBLOCK,XP(I)::B(C)+R(E),DCHECK
      • K(d);N_GUARD,P-FLIGHT,P_SPINB(c),S_CUTR(a)::R(E)
      • K(d);P-FLIGHT,P_SPINP(e)::QAB1(J),XP(e)
      • K(d);N_GUARD,S_FLIGHT::B(C)+R(E),DCHECK
      • K(d);S_FLIGHT,XP(I)::QAR1(J),XP(e)
      • B(c);P_SPINR(a),SBLOCK::B(C)+R(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).