MESON Chess Problem Database

Problem Display
PID: 5071 (3N4/5p2/1P3P2/2pk4/P2pR1N1/3Q4/6K1/8 w - - 0 1)

van Dijk, Johannes

1st Prize, Tijdschrift vd NSB, 1897-1898

3N4/5p2/1P3P2/2pk4/P2pR1N1/3Q4/6K1/8

#2

8 + 4

5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qxd4#
  • Tries
    • 1.Kf1?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kg1?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kh1?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kf2?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kh2?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kf3?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kg3?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Kh3?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Sf2?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Sh2?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Se5?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Sh6?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Rf4?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.Re6?
      • threat
        • 2.Se3#
      • 1...c4
        • 2.Qf5#
      • 1...fxe6!
    • 1.Qb5?
      • 1...Kd6
        • 2.Qc6#
      • 1...d3
        • 2.Qxd3#
        • 2.Qc6#
      • 1...Kxe4!
    • 1.Qg3?
      • 1...Kxe4
        • 2.Qf3#
      • 1...c4
        • 2.Qe5#
      • 1...d3
        • 2.Qe5#
        • 2.Qxd3#
      • 1...Kc4!
    • 1.a5?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
    • 1.b7?
      • 1...c4
        • 2.Qxd4#
      • 1...Kd6!
  • Keys
    • 1.Qa3!
      • 1...Kc4
        • 2.Se3#
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kd6
        • 2.Rxd4#
      • 1...d3
        • 2.Qxd3#
      • 1...c4
        • 2.Re5#

Anticipated by 118812(1889)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::QAR1(B),XP(a)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(D);
      • Threat
        • S(E)
      • Vars
        • P(b);SBLOCK::QAR2(B)
      • Refutation
        • P(d);XR(D)
    • Try
      • Q(B);N_PINP(a),P_PINP(b)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XR(D)
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
        • P(b);SBLOCK::QAR1(B)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • P(C);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(F);
      • Vars
        • P(b);N_GUARD::QAR1(B),XP(a)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(B);N_PINP(a)
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT::S(E)
      • K(c);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
      • K(c);P-FLIGHT,P_SPINP(b)::R(D),XP(a)
      • P(a);OGATEB::QAR2(B),XP(a)
      • P(b);SBLOCK::R1(D)
HTML5 logo

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).