MESON Chess Problem Database

Problem Display
PID: 80712 (1K3R1B/8/2pN4/R3p3/2Bn2r1/2PnkPbN/6p1/3Q1b2 w - - 0 1)

di Scala, Pascal

3rd Prize, Liberte-Dimanche, 1988-1990

1K3R1B/8/2pN4/R3p3/2Bn2r1/2PnkPbN/6p1/3Q1b2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qxc1#
    • 1...Se1
      • 2.Qc1#
    • 1...Sb2
      • 2.Qc1#
    • 1...Sf2
      • 2.Qc1#
    • 1...Sb4
      • 2.Qc1#
    • 1...Sf4
      • 2.Rxe5#
    • 1...Sc5
      • 2.Qc1#
    • 1...Sc2
      • 2.Sf5#
    • 1...Se2
      • 2.Qxd3#
    • 1...Sb3
      • 2.Sf5#
    • 1...Sxf3
      • 2.Rxf3#
    • 1...Sb5
      • 2.Sf5#
    • 1...Sf5
      • 2.Sxf5#
    • 1...Se6
      • 2.Sf5#
    • 1...e4
      • 2.Bxd4#
  • Tries
    • 1.Rxe5+?
      • 1...Re4
        • 2.Rxe4#
      • 1...Sxe5
        • 2.Qc1#
      • 1...Bxe5!
  • Keys
    • 1.Ba6!
      • threat
        • 2.Sc4#
      • 1...Sxf3
        • 2.Rxf3#
      • 1...Sc1
        • 2.Qxc1#
      • 1...Se1
        • 2.Qc1#
      • 1...Sb2
        • 2.Qc1#
      • 1...Sf2
        • 2.Qc1#
      • 1...Sb4
        • 2.Qc1#
      • 1...Sf4
        • 2.Rxe5#
      • 1...Sc5
        • 2.Qc1#
      • 1...Sc2
        • 2.Sf5#
      • 1...Se2
        • 2.Qxd3#
      • 1...Sb3
        • 2.Sf5#
      • 1...Sb5
        • 2.Sf5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...Se6
        • 2.Sf5#
      • 1...e4
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB(A),XS(c)
    • S(c);N_GUARD::QAB(A)
    • S(c);N_GUARD,S_CUTB(e),S_CUTR(g)::R(F),XP(h)
    • S(f);N_GUARD::S(G)
    • S(f);S_CUTB(a)::QAR1(A),XS(c)
    • S(f);OGATE,XP(C)::R1(I),XS(f)
    • S(f);N_GUARD::S(G),XS(f)
    • P(h);OGATE,P_PINS(G)::B(J),XS(f)
  • Tries
    • Try
      • R(F);CHECK,XP(h)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::R1(F),XR(g)
        • S(c);XR(F)::QAB(A)
      • Refutation
        • B(e);P_PINS(G),XR(F)
  • Actual
    • B(E);
    • Threat
      • S(G)
    • Vars
      • S(f);OGATE,XP(C)::R1(I),XS(f)
      • S(c);N_GUARD::QAB(A),XS(c)
      • S(c);N_GUARD::QAB(A)
      • S(c);N_GUARD,S_CUTB(e),S_CUTR(g)::R(F),XP(h)
      • S(f);N_GUARD::S(G)
      • S(f);S_CUTB(a)::QAR1(A),XS(c)
      • S(f);N_GUARD::S(G),XS(f)
      • P(h);OGATE,P_PINS(G)::B(J),XS(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).