MESON Chess Problem Database

Problem Display
PID: 161294 (6R1/2Q5/5p2/p2P1P2/Rn2k1Np/1P2p2p/4N1np/3K3B w - - 0 1)

Jorgensen, Walther Martinus Johannes

1st Prize, Arbejder-Skak, 1950/I

6R1/2Q5/5p2/p2P1P2/Rn2k1Np/1P2p2p/4N1np/3K3B

#2

10 + 9

15593 170 Skakopgaver (Jorgensen) 1975

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qc4#
    • 1...Kf3
      • 2.Qf4#
    • 1...Kxd5
      • 2.Sxf6#
    • 1...Kxf5
      • 2.Qh7#
  • Tries
    • 1.Kc1?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Kf3!
    • 1.Sc3+?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kxf5
        • 2.Sh6#
      • 1...Kf3!
    • 1.Sf2+?
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Rxa5#
        • 2.Rd8#
      • 1...Kxf5
        • 2.Sd4#
      • 1...exf2!
    • 1.Sxf6+?
      • 1...Kd3
        • 2.Qc3#
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxf5!
    • 1.Sh6?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5!
    • 1.Bxg2+?
      • 1...Kd3
        • 2.Qc3#
        • 2.Qc4#
      • 1...Kxf5
        • 2.Sd4#
        • 2.Sxe3#
        • 2.Sh6#
        • 2.Qf4#
        • 2.Qd7#
        • 2.Qh7#
        • 2.Qc8#
      • 1...hxg2!
    • 1.Rxb4+?
      • 1...Kd3
        • 2.Sc1#
        • 2.Rd4#
        • 2.Qc2#
        • 2.Qc3#
        • 2.Qc4#
      • 1...Kf3
        • 2.Rf4#
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sc3#
        • 2.Sf4#
        • 2.Sxe3#
        • 2.Sxf6#
        • 2.Rd4#
        • 2.Rd8#
      • 1...Kxf5
        • 2.Sh6#
        • 2.Qc2#
        • 2.Qd7#
        • 2.Qh7#
        • 2.Qc8#
      • 1...axb4!
    • 1.Rg5?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...fxg5!
    • 1.Rg6?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Rg7?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Ra8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Rb8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Rc8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Rd8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxf5!
    • 1.Re8+?
      • 1...Kd3
        • 2.Qc3#
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxe3#
        • 2.Sxf6#
        • 2.Rxa5#
      • 1...Kxf5!
    • 1.Rf8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Rh8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...Kxf5!
    • 1.Qf4+?
      • 1...Kd3
        • 2.Qc4#
        • 2.Qd4#
      • 1...Kxd5!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Sc1#
        • 2.Qd4#
      • 1...Kf3
        • 2.Sd4#
        • 2.Qf4#
        • 2.Qxe3#
      • 1...fxe5!
    • 1.Qd6?
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxf5
        • 2.Qe6#
      • 1...Kd3!
    • 1.Qc2+?
      • 1...Kxd5
        • 2.Rd8#
      • 1...Kf3!
    • 1.Qc4+?
      • 1...Kf3
        • 2.Qf4#
      • 1...Kxf5!
    • 1.Qc5?
      • 1...Kd3
        • 2.Qd4#
        • 2.Qc4#
      • 1...Kf3
        • 2.Qxe3#
      • 1...Kxf5!
    • 1.Qc6?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kxf5
        • 2.Qe6#
      • 1...Kf3!
    • 1.Qa7?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qxe3#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Kxd5!
  • Keys
    • 1.Qb6!
      • 1...Kd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qxe3#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Qe6#

This is a version

Version by Y. G. Vladimirov.

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
    • K(f);S_FLIGHT::QAR1(I)
    • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
    • K(f);N_SPINS(a),OGATEB,S_FLIGHT,XP(H)::QAB(I)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
        • K(f);N_SPINS(a),OGATEB,S_FLIGHT,XP(H)::QAB(I)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);N_SPINS(a),P-FLIGHT,P_SPINS(e)::QAR1(I)
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)::S(F)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)::S(C)
      • Refutation
        • P(c);XS(F)
    • Try
      • S(F);CHECK,XP(i)
      • Vars
        • K(f);S_FLIGHT::QAR1(I)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • S(F);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
      • Refutation
        • K(f);S_FLIGHT,XP(G)
    • Try
      • B(B);CHECK,P_PINS(e),XS(a)
      • Refutation
        • P(d);XB(B)
    • Try
      • R(E);CHECK,XS(e)
      • Refutation
        • P(h);XR(E)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • P(i);XR(J)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);CHECK
      • Vars
        • K(f);S_FLIGHT::QAR1(I)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),P_SPINP(i),S_FLIGHT,XP(H)
    • Try
      • R(J);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT,XP(G)::S(F),XP(i)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • Q(I);CHECK
      • Refutation
        • K(f);S_FLIGHT,XP(G)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(i);XQ(I)
    • Try
      • Q(I);
      • Vars
        • K(f);S_FLIGHT::QAR1(I)
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)::QAB1(I)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);S_FLIGHT,XP(G)::R(J)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT::QAR1(I)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • Q(I);
      • Vars
        • K(f);S_FLIGHT::QAR1(I),XP(c)
      • Refutation
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)
    • Try
      • Q(I);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAB1(I)
        • K(f);N_SPINS(a),S_FLIGHT,XP(H)::QAB1(I)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(f);N_SPINS(a),S_FLIGHT::QAR1(I)
        • K(f);S_FLIGHT::QAR1(I),XP(c)
        • K(f);N_SPINS(a),OGATEB,S_FLIGHT,XP(H)::QAB(I)
      • Refutation
        • K(f);S_FLIGHT,XP(G)
  • Actual
    • Q(I);
    • Vars
      • K(f);N_SPINS(a),S_FLIGHT::QAR1(I)
      • K(f);S_FLIGHT::QAR1(I),XP(c)
      • K(f);S_FLIGHT,XP(G)::S(C)
      • K(f);N_SPINS(a),S_FLIGHT,XP(H)::QAB1(I)
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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).