MESON Chess Problem Database

Problem Display
PID: 261887 (K1N1n1r1/4b1p1/Np4R1/3k1P2/nqpP4/2p1P3/2B5/r7 w - - 0 1)

Lipton, Michael

Haboker, 1953

(First published on Fri Dec 25 1953)

K1N1n1r1/4b1p1/Np4R1/3k1P2/nqpP4/2p1P3/2B5/r7

#2

8 + 11

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sxe7#
    • 1...Qb1
      • 2.Sxe7#
    • 1...Qb2
      • 2.Sxe7#
    • 1...Qb3
      • 2.Sxe7#
    • 1...Qb5
      • 2.Sxe7#
    • 1...Bh4
      • 2.Sxb4#
    • 1...Bg5
      • 2.Sxb4#
    • 1...Bf6
      • 2.Sxb4#
    • 1...Bd8
      • 2.Sxb4#
    • 1...Sc5
      • 2.Sxe7#
    • 1...Sd6
      • 2.Sxb4#
    • 1...Sc7+
      • 2.Sxc7#
  • Keys
    • 1.Re6!
      • threat
        • 2.Be4#
      • 1...Sc7+
        • 2.Sxc7#
      • 1...Sd6
        • 2.Sxb4#
      • 1...Qb1
        • 2.Sxe7#
      • 1...Sc5
        • 2.Sxe7#
      • 1...Sf6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(d);N_GUARD,P_PINS(E)::S(H),XB(h)
    • Q(d);N_GUARD::S(H),XB(h)
    • B(h);N_GUARD::S(E),XQ(d)
    • S(c);P_PINS(E),S_CUTQ(d)::S(H),XB(h)
    • S(j);P_PINS(H),S_CUTB(h)::S(E),XQ(d)
    • S(j);CHECK,N_GUARD,P_PINS(H)::S(E),XS(j)
  • Actual
    • R(F);
    • Threat
      • B(A)
    • Vars
      • S(j);CHECK,N_GUARD,P_PINS(H)::S(E),XS(j)
      • S(j);P_PINS(H),S_CUTB(h)::S(E),XQ(d)
      • Q(d);N_GUARD::S(H),XB(h)
      • S(c);P_PINS(E),S_CUTQ(d)::S(H),XB(h)
      • S(j);N_GUARD,P_PINS(H)::S(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).