MESON Chess Problem Database

Problem Display
PID: 175587 (n7/1p4Q1/1p2pp2/1K2k3/4P3/2P5/1N1P2Bb/8 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1900

n7/1p4Q1/1p2pp2/1K2k3/4P3/2P5/1N1P2Bb/8

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sd3#
    • 1...Kd6
      • 2.Sc4#
    • 1...Bg1
      • 2.Qg3#
    • 1...Bg3
      • 2.Qxg3#
    • 1...Bf4
      • 2.Sc4#
    • 1...Sc7+
      • 2.Qxc7#
  • Tries
    • 1.Bf3?
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Kd6
        • 2.Sc4#
      • 1...Bg1
        • 2.Qg3#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bf4
        • 2.Sc4#
      • 1...Kf4!
    • 1.Qe7?
      • threat
        • 2.Sd3#
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Kf4!
    • 1.d3?
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Kd6
        • 2.Sc4#
      • 1...Bg1
        • 2.Qg3#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bf4
        • 2.Sc4#
      • 1...Kf4!
    • 1.d4+?
      • 1...Kd6
        • 2.Sc4#
      • 1...Kf4!
  • Keys
    • 1.Bh1!
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd6
        • 2.Sc4#
      • 1...Bg1
        • 2.Qg3#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bf4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(e),S_FLIGHT::S(A)
    • B(a);N_GUARD::QAB(G)
    • B(a);N_GUARD::QAB(G),XB(a)
    • B(a);SBLOCK::S(A)
    • S(g);CHECK,N_GUARD::QAB(G),XS(g)
  • Tries
    • Try
      • B(C);
      • Vars
        • S(g);CHECK,N_GUARD::QAB(G),XS(g)
        • K(b);N_SPINP(e),S_FLIGHT::S(A)
        • B(a);N_GUARD::QAB(G)
        • B(a);N_GUARD::QAB(G),XB(a)
        • B(a);SBLOCK::S(A)
      • Refutation
        • K(b);N_SPINP(e),S_FLIGHT
    • Try
      • Q(G);N_PINP(e),P_PINP(d)
      • Threat
        • S(A)
      • Vars
        • S(g);CHECK,N_GUARD::QAB(G),XS(g)
      • Refutation
        • K(b);N_SPINP(d),S_FLIGHT
    • Try
      • P(B);
      • Vars
        • S(g);CHECK,N_GUARD::QAB(G),XS(g)
        • K(b);N_SPINP(e),S_FLIGHT::S(A)
        • B(a);N_GUARD::QAB(G)
        • B(a);N_GUARD::QAB(G),XB(a)
        • B(a);SBLOCK::S(A)
      • Refutation
        • K(b);N_SPINP(e),S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(b);N_SPINP(e),S_FLIGHT::S(A)
      • Refutation
        • K(b);N_SPINP(e),S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • S(g);CHECK,N_GUARD::QAB(G),XS(g)
      • K(b);N_SPINP(e),S_FLIGHT::S(A)
      • B(a);N_GUARD::QAB(G)
      • B(a);N_GUARD::QAB(G),XB(a)
      • B(a);SBLOCK::S(A)
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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).