MESON Chess Problem Database

Problem Display
PID: 17647 (8/2K5/2Qpp1N1/7p/3pB3/1p2k2r/8/1r1RBbNn w - - 0 1)

Haring, WH

Jobez Nieuws, 1948

8/2K5/2Qpp1N1/7p/3pB3/1p2k2r/8/1r1RBbNn

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Rd3#
    • 1...Bd3
      • 2.Rxd3#
    • 1...Sf2
      • 2.Bd2#
  • Tries
    • 1.Bxb1?
      • threat
        • 2.Qe4#
        • 2.Qc1#
      • 1...Rh2
        • 2.Qf3#
        • 2.Qe4#
      • 1...Rh4
        • 2.Qf3#
        • 2.Qc1#
      • 1...Bg2
        • 2.Rd3#
        • 2.Qc1#
      • 1...Bd3
        • 2.Rxd3#
      • 1...Bc4
        • 2.Qe4#
      • 1...Sf2
        • 2.Bd2#
        • 2.Qc1#
      • 1...Sg3
        • 2.Qf3#
        • 2.Qc1#
      • 1...b2
        • 2.Qe4#
      • 1...d5
        • 2.Qc1#
        • 2.Qxe6#
      • 1...d3!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qe4#
      • 1...exf5
        • 2.Qe8#
      • 1...Bd3
        • 2.Rxd3#
      • 1...Rc1
        • 2.Qxc1#
      • 1...Rh4
        • 2.Qf3#
      • 1...Bg2
        • 2.Rd3#
      • 1...Sf2
        • 2.Bd2#
      • 1...Sg3
        • 2.Qf3#
      • 1...d5
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::R1(A)
    • B(b);N_GUARD::R1(A),XB(b)
    • S(c);SBLOCK::B(B)
  • Tries
    • Try
      • B(D);XR(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);N_GUARD::R1(A),XB(b)
        • B(b);::QAR1(E)
        • P(d);::QAR1(E)
      • Refutation
        • P(g);
  • Actual
    • B(D);
    • Threat
      • QAR1(E)
    • Vars
      • P(j);OGATEB,XB(D)::QAR(E)
      • B(b);N_GUARD::R1(A),XB(b)
      • R(a);N_GUARD,P_PINQ(E)::QAB(E),XR(a)
      • R(f);N_GUARD::QAR1(E)
      • B(b);N_GUARD::R1(A)
      • S(c);SBLOCK::B(B)
      • S(c);S_CUTR(f)::QAR1(E)
      • P(i);OGATE::QAR(E),XP(j)
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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).