MESON Chess Problem Database

Problem Display
PID: 97917 (1B6/pp1p4/q7/p2p3N/P2NkP1K/1QP4p/1n1P4/5B1n w - - 0 1)

Haring, Jacobus

Problemas, 1967

1B6/pp1p4/q7/p2p3N/P2NkP1K/1QP4p/1n1P4/5B1n

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Sf6#
    • 1...Qc4
      • 2.Sf6#
    • 1...Qb5
      • 2.Sf6#
    • 1...Qf6+
      • 2.Sxf6#
    • 1...Sf2
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sc4
      • 2.Qc2#
      • 2.Qb1#
    • 1...b6
      • 2.Sf6#
  • Tries
    • 1.Qc2+?
      • 1...Qd3
        • 2.Sf6#
      • 1...Sd3!
  • Keys
    • 1.Qb5!
      • 1...Qf6+
        • 2.Sxf6#
      • 1...Qxb5
        • 2.Sf6#
      • 1...Sxa4
        • 2.Bd3#
      • 1...Qb6
        • 2.Qe2#
      • 1...Qc6
        • 2.Qe2#
      • 1...Qd6
        • 2.Qe2#
      • 1...Qe6
        • 2.Qe2#
      • 1...Qg6
        • 2.Qe2#
      • 1...Qh6
        • 2.Qe2#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sd1
        • 2.Bd3#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sc4
        • 2.Qb1#
      • 1...h2
        • 2.Bg2#
      • 1...b6
        • 2.Sf6#
      • 1...d6
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 2
  • Sets
    • Q(g);N_GUARD::S(I)
    • Q(g);CHECK,N_GUARD::S(I),XQ(g)
    • S(a);N_GUARD::S(I)
    • S(a);N_GUARD::S(I),XS(a)
    • P(i);S_CUTQ(g)::S(I)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • Q(g);P_SPINQ(g)::S(I)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • Q(C);
    • Vars
      • Q(g);CHECK,N_GUARD::S(I),XQ(g)
      • Q(g);N_GUARD,XQ(C)::S(I)
      • S(b);N_GUARD,XP(E)::B(A)
      • Q(g);N_GUARD::QAR2(C)
      • Q(g);N_GUARD,P_PINS(I)::QAR2(C)
      • S(a);N_GUARD::S(I)
      • S(a);N_GUARD::S(I),XS(a)
      • S(b);N_GUARD::B(A)
      • S(b);N_GUARD::B(A),XS(b)
      • S(b);OGATE::QAB(C)
      • P(c);N_GUARD::B(A)
      • P(i);S_CUTQ(g)::S(I)
      • P(j);OGATE::QAR(C)
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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).