MESON Chess Problem Database

Problem Display
PID: 107824 (k5NR/1b6/1K1B4/2p2Bp1/1p6/1pb2n2/1P1p4/1Q5q w - - 0 1)

Brunner, Erich Anselm

Basler Nachrichten, 1928

k5NR/1b6/1K1B4/2p2Bp1/1p6/1pb2n2/1P1p4/1Q5q

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Bxe4#
      • 2.Qxe4#
  • Tries
    • 1.Sf6+?
      • 1...Bc8
        • 2.Be4#
        • 2.Rxc8#
        • 2.Qe4#
      • 1...Qxh8!
    • 1.Sh6+?
      • 1...Bc8
        • 2.Be4#
        • 2.Rxc8#
        • 2.Qe4#
      • 1...Bxh8!
    • 1.Qa2+?
      • 1...Ba6
        • 2.Be4#
        • 2.Qxa6#
      • 1...bxa2!
    • 1.Qa1+?
      • 1...Ba6
        • 2.Be4#
        • 2.Qxa6#
      • 1...Qxa1!
  • Keys
    • 1.Be4!
      • threat
        • 2.Bxb7#
      • 1...Bxe4
        • 2.Qxe4#
      • 1...Qh7
        • 2.Qa1#
      • 1...Bd5
        • 2.Bxd5#
      • 1...Bc6
        • 2.Bxc6#
      • 1...Se1
        • 2.Qa1#
      • 1...Sg1
        • 2.Qa1#
      • 1...Sh2
        • 2.Sf6#
      • 1...Sd4
        • 2.Sh6#
      • 1...Sh4
        • 2.Sf6#
      • 1...Se5
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • Q(a);XR(G)
    • Try
      • S(F);CHECK
      • Refutation
        • B(d);XR(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • Q(a);XQ(A)
  • Actual
    • B(C);P_PINB(i)
    • Threat
      • B(C),XB(i)
    • Vars
      • B(i);N_SPINB(i),OGATE,XB(C)::QAB(A),XB(i)
      • Q(a);N_GUARD::QAB(A)
      • B(i);OGATEB::B(C),XB(i)
      • S(e);S_CUTQ(a)::QAB(A)
      • S(e);S_CUTQ(a)::R(G)+S(F)
      • S(e);S_CUTB(d)::R(G)+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).