MESON Chess Problem Database

Problem Display
PID: 267155 (5B2/2Pp1p1B/4bR2/3Nkp2/1p6/3K3N/6Qp/6n1 w - - 0 1)

Baumann, Klaus

Schach, 2022

5B2/2Pp1p1B/4bR2/3Nkp2/1p6/3K3N/6Qp/6n1

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Qb2#
    • 1...f4
      • 2.Qe4#
  • Tries
    • 1.Qxh2+?
      • 1...Kxd5
        • 2.Qd6#
      • 1...f4!
    • 1.Qg3+?
      • 1...Kxd5
        • 2.Qd6#
      • 1...f4!
    • 1.Qg7?
      • threat
        • 2.Rxf5#
      • 1...Bxd5
        • 2.Bd6#
      • 1...f4
        • 2.Rf5#
      • 1...Kxd5!
    • 1.c8S?
      • threat
        • 2.Bd6#
      • 1...Bxd5
        • 2.Qb2#
      • 1...d6
        • 2.Bxd6#
      • 1...Sf3!
  • Keys
    • 1.Shf4!
      • threat
        • 2.Qb2#
      • 1...Bxd5
        • 2.Rxf5#
      • 1...Se2
        • 2.Qxe2#
      • 1...Sf3
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(f);SBLOCK,XS(D)::QAB(A)
    • P(e);N_GUARD::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK,XP(b)
      • Vars
        • K(d);OGATE,P-FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,P-FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(A);
      • Threat
        • QAB(A)+R(E),DCHECK,XP(e)
      • Vars
        • B(f);SBLOCK,XS(D)::B(H)
        • P(e);::QAB(A)+R(E),DCHECK
      • Refutation
        • K(d);P-FLIGHT,XS(D)
    • Try
      • P(F);
      • Threat
        • B(H)
      • Vars
        • B(f);SBLOCK,XS(D)::QAB(A)
        • P(g);::B(H),XP(g)
      • Refutation
        • S(a);
  • Actual
    • S(C);
    • Threat
      • QAB(A)
    • Vars
      • B(f);N_GUARD,XS(D)::R1(E),XP(e)
      • S(a);N_GUARD::QAR(A),XS(a)
      • S(a);N_GUARD::QAR(A)
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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).