MESON Chess Problem Database

Problem Display
PID: 194149 (2n3R1/B3P3/1rQ3BK/rn1p4/3k4/b3Rppp/1P1Pp2q/6Nb w - - 0 1)

Berkel, Adrian V

Brisbane Courier, 1917

2n3R1/B3P3/1rQ3BK/rn1p4/3k4/b3Rppp/1P1Pp2q/6Nb

#2

10 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Qxc3#
      • 2.bxc3#
    • 1...Sbd6
      • 2.Qc3#
    • 1...Sbxa7
      • 2.Qc3#
    • 1...Sc7
      • 2.Qc3#
    • 1...f2
      • 2.Sxe2#
    • 1...g2
      • 2.Sxf3#
  • Tries
    • 1.Bxb6+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sxb6!
    • 1.b4?
      • threat
        • 2.Qc5#
      • 1...Sbxa7
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sbd6
        • 2.Qc3#
      • 1...Sc7
        • 2.Qc3#
      • 1...Bxb4!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Rg4#
      • 1...Bd6
        • 2.Qxd5#
      • 1...Sc3
        • 2.bxc3#
      • 1...Sbd6
        • 2.Qc3#
      • 1...Scd6
        • 2.Qxd5#
      • 1...f2
        • 2.Sxe2#
      • 1...g2
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(j);N_GUARD::QAB1(E)
    • S(j);N_GUARD,N_SPINR(l),XB(H)::QAB1(E)
    • P(e);N_GUARD,S_CUTQ(c)::S(A),XP(b)
    • P(f);S_CUTB(a)::S(A),XP(e)
  • Tries
    • Try
      • B(H);CHECK,XR(l)
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::QAB1(E),XB(d)
      • Refutation
        • S(m);XB(H)
    • Try
      • P(B);
      • Threat
        • QAB1(E)
      • Vars
        • S(j);N_GUARD,N_SPINR(l),XB(H)::QAB1(E)
        • S(j);N_GUARD::QAB1(E),XS(j)
        • S(j);N_GUARD::QAB1(E)
      • Refutation
        • B(d);XP(B)
  • Actual
    • B(F);P_SPINQ(E)
    • Threat
      • R(J)
    • Vars
      • B(d);N_PINQ(E)::QAR1(E),XP(k)
      • S(j);OGATE::P(B),XS(j)
      • S(j);N_PINQ(E)::QAB1(E)
      • S(m);N_PINQ(E)::QAR1(E),XP(k)
      • P(e);N_GUARD,S_CUTQ(c)::S(A),XP(b)
      • P(f);S_CUTB(a)::S(A),XP(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).