MESON Chess Problem Database

Problem Display
PID: 175591 (Bn4b1/1Q6/2r3p1/3k2K1/p5N1/B4P2/2P1N3/8 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1900

Bn4b1/1Q6/2r3p1/3k2K1/p5N1/B4P2/2P1N3/8

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Se3#
    • 1...Ke6
      • 2.Sf4#
    • 1...Be6
      • 2.Qb5#
    • 1...Bf7
      • 2.Qxf7#
    • 1...Bh7
      • 2.Qf7#
    • 1...Sa6
      • 2.Qxc6#
    • 1...Sd7
      • 2.Qxc6#
  • Tries
    • 1.Sc3+?
      • 1...Kc4
        • 2.Qb4#
      • 1...Ke6
        • 2.Qe7#
      • 1...Kd4!
    • 1.Sf4+?
      • 1...Kc4
        • 2.Qb4#
      • 1...Kd4!
    • 1.Se3+?
      • 1...Ke6
        • 2.Qe7#
      • 1...Ke5!
    • 1.Sf6+?
      • 1...Kc4
        • 2.Qb4#
      • 1...Ke6
        • 2.Qe7#
      • 1...Ke5!
    • 1.Bb4?
      • 1...Kc4
        • 2.Se3#
      • 1...Ke6
        • 2.Sf4#
      • 1...Be6
        • 2.Qb5#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Bh7
        • 2.Qf7#
      • 1...Sa6
        • 2.Qxc6#
      • 1...Sd7
        • 2.Qxc6#
      • 1...a3!
    • 1.Qb1?
      • threat
        • 2.Qa2#
      • 1...Kc4
        • 2.Se3#
      • 1...Ke6!
    • 1.Qb2?
      • threat
        • 2.Qa2#
      • 1...Kc4
        • 2.Se3#
      • 1...Ke6!
    • 1.Qc7?
      • 1...Ke6
        • 2.Sf4#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Be6
        • 2.Se3#
      • 1...Bh7
        • 2.Qf7#
      • 1...Sa6
        • 2.Qxc6#
      • 1...Sd7
        • 2.Qxc6#
      • 1...Kc4!
    • 1.Qd7+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Sxd7!
    • 1.Qe7?
      • threat
        • 2.Se3#
        • 2.Qe4#
      • 1...Be6
        • 2.Qc5#
      • 1...Kc4!
    • 1.Qg7?
      • threat
        • 2.Qxg8#
      • 1...Ke6
        • 2.Sf4#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Be6
        • 2.Se3#
        • 2.Qd4#
      • 1...Bh7
        • 2.Qf7#
      • 1...Kc4!
    • 1.c3?
      • 1...Ke6
        • 2.Sf4#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Be6
        • 2.Qb5#
      • 1...Bh7
        • 2.Qf7#
      • 1...Sa6
        • 2.Qxc6#
      • 1...Sd7
        • 2.Qxc6#
      • 1...Kc4!
    • 1.c4+?
      • 1...Ke6
        • 2.Sd4#
        • 2.Sf4#
        • 2.Qe7#
      • 1...Kxc4!
  • Keys
    • 1.Bf8!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke6
        • 2.Sf4#
      • 1...Be6
        • 2.Qb5#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Bh7
        • 2.Qf7#
      • 1...Sa6
        • 2.Qxc6#
      • 1...Sd7
        • 2.Qxc6#
      • 1...a3
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(c),S_FLIGHT::S(E)
    • K(b);N_SPINR(c),S_FLIGHT::S(B)
    • B(f);SBLOCK::QAR2(G)
    • B(f);N_GUARD::QAB(G),XB(f)
    • B(f);N_GUARD::QAB(G)
    • S(e);N_GUARD::QAB1(G),XR(c)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::QAR1(G)
      • Refutation
        • K(b);N_SPINR(c),P-FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::QAR1(G)
      • Refutation
        • K(b);N_SPINR(c),P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::QAR1(G)
      • Refutation
        • K(b);N_SPINR(c),P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::QAR1(G)
      • Refutation
        • K(b);N_SPINR(c),P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::S(E)
        • K(b);N_SPINR(c),S_FLIGHT::S(B)
        • B(f);SBLOCK::QAR2(G)
        • B(f);N_GUARD::QAB(G),XB(f)
        • B(f);N_GUARD::QAB(G)
        • S(e);N_GUARD::QAB1(G),XR(c)
      • Refutation
        • P(a);
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::S(E)
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::S(E)
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::S(B)
        • B(f);N_GUARD::QAB(G),XB(f)
        • B(f);SBLOCK::S(E)
        • B(f);N_GUARD::QAB(G)
        • S(e);N_GUARD::QAB1(G),XR(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);N_SPINR(c),OGATE,S_FLIGHT::QAB1(G)
      • Refutation
        • S(e);XQ(G)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);SBLOCK::QAR1(G)
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G),XB(f)
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::S(B)
        • B(f);N_GUARD::QAB(G),XB(f)
        • B(f);N_GUARD::QAB(G)
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT
    • Try
      • P(A);
      • Vars
        • K(b);N_SPINR(c),S_FLIGHT::S(B)
        • B(f);N_GUARD::QAB(G),XB(f)
        • B(f);SBLOCK::QAR2(G)
        • B(f);N_GUARD::QAB(G)
        • S(e);N_GUARD::QAB1(G),XR(c)
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT
    • Try
      • P(A);CHECK
      • Refutation
        • K(b);N_SPINR(c),S_FLIGHT,XP(A)
  • Actual
    • B(C);
    • Vars
      • K(b);N_SPINR(c),S_FLIGHT::S(E)
      • K(b);N_SPINR(c),S_FLIGHT::S(B)
      • B(f);SBLOCK::QAR2(G)
      • B(f);N_GUARD::QAB(G),XB(f)
      • B(f);N_GUARD::QAB(G)
      • S(e);N_GUARD::QAB1(G),XR(c)
      • P(a);N_GUARD::QAB(G)
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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).