MESON Chess Problem Database

Problem Display
PID: 203323 (8/3Q4/4pP2/2p5/2P1kPp1/pP2N1P1/prpP2P1/BbK5 w - - 0 1)

Neukomm, Gyula (Julius) R

Schor, Laszlo

Falkirk Herald, 1924

8/3Q4/4pP2/2p5/2P1kPp1/pP2N1P1/prpP2P1/BbK5

#2

11 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Qh7#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Sf1?
      • 1...Rxb3
        • 2.Qh7#
      • 1...e5
        • 2.d3#
      • 1...Kf5!
    • 1.Sxg4?
      • 1...Rxb3
        • 2.Qh7#
      • 1...e5
        • 2.Sf2#
        • 2.d3#
      • 1...Kf5!
    • 1.Qxe6+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qd6?
      • 1...e5
        • 2.Qd5#
      • 1...Rxb3!
    • 1.Qd8?
      • 1...e5
        • 2.Qd5#
      • 1...Rxb3!
    • 1.b4?
      • 1...Rxb4
        • 2.Qh7#
      • 1...Rb3
        • 2.Qh7#
      • 1...e5
        • 2.Qd5#
      • 1...cxb4!
    • 1.f7?
      • 1...e5
        • 2.Qd5#
      • 1...Rxb3!
  • Keys
    • 1.Sd5!
      • 1...Kd3
        • 2.Sc3#
      • 1...Kd4
        • 2.Sc3#
      • 1...Kf5
        • 2.Qh7#
      • 1...Rxb3
        • 2.Qh7#
      • 1...exd5
        • 2.Qxd5#
      • 1...e5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);XP(E)::QAB(K)
    • P(i);N_GUARD::QAB1(K)
  • Tries
    • Try
      • S(F);
      • Vars
        • R(c);XP(E)::QAB(K)
        • P(i);::P(C)
      • Refutation
        • K(f);P_SPINP(i),S_FLIGHT
    • Try
      • S(F);XP(g)
      • Vars
        • R(c);XP(E)::QAB(K)
      • Refutation
        • K(f);P_SPINP(i),S_FLIGHT
    • Try
      • Q(K);CHECK,XP(i)
      • Vars
        • K(f);P-FLIGHT,P_SPINR(c)::QAR1(K)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(K);
      • Vars
        • P(i);N_GUARD::QAB1(K)
      • Refutation
        • R(c);XP(E)
    • Try
      • Q(K);
      • Vars
        • P(i);N_GUARD::QAB1(K)
      • Refutation
        • R(c);XP(E)
    • Try
      • P(E);
      • Vars
        • R(c);XP(E)::QAB(K)
        • R(c);::QAB(K)
        • P(i);N_GUARD::QAB1(K)
      • Refutation
        • P(h);XP(E)
    • Try
      • P(J);
      • Vars
        • P(i);N_GUARD::QAB1(K)
      • Refutation
        • R(c);XP(E)
  • Actual
    • S(F);
    • Vars
      • K(f);S_FLIGHT::QAR(K)+S(F)
      • K(f);P-FLIGHT,P_SPINR(c)::QAR(K)+S(F)
      • K(f);P_SPINP(i),S_FLIGHT::QAB(K)
      • R(c);XP(E)::QAB(K)
      • P(i);OGATE,XS(F)::QAB1(K),XP(i)
      • P(i);::S(F)
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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).