MESON Chess Problem Database

Problem Display
PID: 194009 (K4B2/3R4/2P4Q/3PN3/3kq1P1/1P6/1P3N2/5n2 w - - 0 1)

Kintzig, Robert

Prize, Reclam-Sammlung VI, 1917

K4B2/3R4/2P4Q/3PN3/3kq1P1/1P6/1P3N2/5n2

#2

11 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Bg7#
    • 1...Qb1
      • 2.Sf3#
    • 1...Qc2
      • 2.Sf3#
    • 1...Qf3
      • 2.Sxf3#
    • 1...Qxd5
      • 2.Sf3#
      • 2.Qf4#
    • 1...Qg6
      • 2.Sf3#
    • 1...Qh7
      • 2.Sf3#
    • 1...Qe1
      • 2.Sf3#
    • 1...Qf4
      • 2.Qxf4#
  • Tries
    • 1.Bc5+?
      • 1...Kxe5
        • 2.Qd6#
      • 1...Kxc5!
    • 1.Qd2+?
      • 1...Kxe5
        • 2.Bg7#
      • 1...Qd3
        • 2.Sf3#
      • 1...Sxd2!
  • Keys
    • 1.c7!
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Bg7#
      • 1...Qxe5
        • 2.Qb6#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Qc2
        • 2.Sf3#
      • 1...Qg6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(F)::B(K)
    • Q(c);N_GUARD::S(F)
    • Q(c);N_GUARD::S(F),XQ(c)
    • Q(c);OGATEB::QAR2(H),XQ(c)
  • Tries
    • Try
      • B(K);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(F)::QAB1(H)
      • Refutation
        • K(b);S_FLIGHT,XB(K)
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(F)::B(K)
        • Q(c);P_SPINQ(c)::S(F)
      • Refutation
        • S(a);XQ(H)
  • Actual
    • P(G);P_SPINP(E)
    • Threat
      • S(F)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(F)::B(K)
      • Q(c);N_PINP(E),SBLOCK,XS(F)::QAB(H)
      • Q(c);N_PINP(E),OGATEB::QAR2(H),XQ(c)
      • Q(c);N_GUARD,N_PINP(E)::S(F)
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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).