MESON Chess Problem Database

Problem Display
PID: 11205 (bbB5/4p2K/R2p2N1/Qp4kp/p6p/q1n5/rB3PN1/1r1n2R1 w - - 0 1)

Neumann, Itzhak

Chess, 1937

bbB5/4p2K/R2p2N1/Qp4kp/p6p/q1n5/rB3PN1/1r1n2R1

#2

9 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.f4#
    • 1...Sd5
      • 2.Se3#
    • 1...d5
      • 2.S2f4#
    • 1...e5
      • 2.Qd8#
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxe7#
      • 1...Kf6
        • 2.Qxe7#
      • 1...Se4
        • 2.f4#
      • 1...Sd5
        • 2.Se3#
      • 1...d5
        • 2.S2f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(e);::P(C)
    • S(e);N_SPINP(h),S_CUTB(m)::R(A)+S(D)
    • P(k);N_SPINP(h),S_CUTB(m)::R(A)+S(D)
    • P(l);N_SPINP(h),OGATEB::QAB(E)
  • Actual
    • Q(E);N_PINP(h),P_PINP(l)
    • Threat
      • QAB(E),XP(l)
    • Vars
      • K(i);N_SPINP(l),P_SPINP(k),P_SPINS(e),S_FLIGHT::QAB1(E),XP(l)
      • S(e);::P(C)
      • S(e);S_CUTB(m)::R(A)+S(D)
      • P(k);S_CUTB(m)::R(A)+S(D)
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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).