MESON Chess Problem Database

Problem Display
PID: 195234 (5R2/4p3/1p2N1P1/1P1k4/2N3P1/Q1p5/2K5/8 w - - 0 1)

Huebner, M

Mitteilungsblatt des Deutschen Arbeiter-Schachbundes, 1918

5R2/4p3/1p2N1P1/1P1k4/2N3P1/Q1p5/2K5/8

#2

8 + 4

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qb3#
    • 1...Ke4
      • 2.Qa8#
  • Tries
    • 1.Kxc3?
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Sc7+?
      • 1...Kxc4
        • 2.Rf4#
        • 2.Qxc3#
      • 1...Kd4
        • 2.Rf4#
      • 1...Ke4!
    • 1.Rf1?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rf2?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rf3?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rf5+?
      • 1...Kxc4
        • 2.Qb3#
        • 2.Qxc3#
        • 2.Qa4#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rf6?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...exf6!
    • 1.Rf7?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rb8?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rc8?
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rd8+?
      • 1...Kxc4
        • 2.Qb3#
        • 2.Qa4#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rg8?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Rh8?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Sg5#
        • 2.Rf4#
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qf5#
        • 2.Qc6#
      • 1...Kxe6
        • 2.Qf5#
        • 2.Qc6#
      • 1...bxc5!
    • 1.Qxe7?
      • 1...Ke4
        • 2.Qb7#
      • 1...Kxc4!
    • 1.Qa2?
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Qxc3?
      • 1...Ke4
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qd3#
        • 2.Qf3#
      • 1...Kxe6!
    • 1.Qa4?
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.Qa8+?
      • 1...Kxe6
        • 2.Qc6#
      • 1...Kxc4!
    • 1.g5?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
    • 1.g7?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
  • Keys
    • 1.Re8!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6
        • 2.Qd6#

Anticipated by 65540(1880)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
    • K(b);S_FLIGHT::QAB(B)
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P-FLIGHT::R(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • P(d);XR(H)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • R(H);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • Q(B);CHECK
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);XP(d)
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(B);
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • Q(B);XP(a)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • Q(B);
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(F)::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • P(D);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • P(G);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
  • Actual
    • R(H);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
      • K(b);S_FLIGHT::QAB(B)
      • K(b);P_SPINP(d),S_FLIGHT,XS(F)::QAR1(B)
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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).