MESON Chess Problem Database

Problem Display
PID: 6164 (3R4/2p1p1rB/K2B2r1/b5p1/1pP5/3kpQ2/4N3/2R2n2 w - - 0 1)

ten Cate, Pieter

1st HM., Pewarta Soerabaja, 1927

3R4/2p1p1rB/K2B2r1/b5p1/1pP5/3kpQ2/4N3/2R2n2

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb6
      • 2.Bc5#
    • 1...c6
      • 2.Bc7#
    • 1...e6
      • 2.Be7#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Qd5#
      • 1...Kd2
        • 2.Qd1#
      • 1...Kd4
        • 2.Qe4#
        • 2.Qd5#
      • 1...Bb6
        • 2.Bc5#
      • 1...c6
        • 2.Bc7#
      • 1...e6
        • 2.Be7#
      • 1...Sxg3!
    • 1.Sf4+?
      • 1...Kd2
        • 2.Qd1#
      • 1...Kd4
        • 2.Qd5#
      • 1...gxf4!
    • 1.Bxg6+?
      • 1...Kd2
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bxb4#
        • 2.Bf4#
        • 2.Bc5#
        • 2.Be5#
        • 2.Bxc7#
        • 2.Bxe7#
      • 1...Rxg6!
    • 1.Qf5+?
      • 1...Kd2
        • 2.Qc2#
      • 1...Kxe2!
  • Keys
    • 1.Sg1!
      • threat
        • 2.Qd5#
      • 1...Kd2
        • 2.Qd1#
      • 1...Kd4
        • 2.Qd5#
      • 1...Bb6
        • 2.Bc5#
      • 1...c6
        • 2.Bc7#
      • 1...e6
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(e);N_PINB(F)::R(H)+B(F)
    • P(h);N_PINB(F)::R(H)+B(F)
    • P(i);N_PINB(F)::R(H)+B(F)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR2(C)
      • Vars
        • K(b);N_SPINP(c),N_SPINR(g),P-FLIGHT::QAR1(C)
        • B(e);N_PINB(F)::R(H)+B(F)
        • P(h);N_PINB(F)::R(H)+B(F)
        • P(i);N_PINB(F)::R(H)+B(F)
      • Refutation
        • S(a);XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(b);N_SPINP(c),N_SPINR(g),P-FLIGHT::QAR1(C)
      • Refutation
        • P(f);XS(B)
    • Try
      • B(G);CHECK,N_SPINB(F),XR(g)
      • Refutation
        • R(j);P_PINB(F),XB(G)
    • Try
      • Q(C);CHECK,N_PINP(c),N_PINR(g)
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
  • Actual
    • S(B);
    • Threat
      • QAR2(C)
    • Vars
      • K(b);N_SPINP(c),N_SPINR(g),P-FLIGHT::QAR1(C)
      • B(e);N_PINB(F)::R(H)+B(F)
      • P(h);N_PINB(F)::R(H)+B(F)
      • P(i);N_PINB(F)::R(H)+B(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).