MESON Chess Problem Database

Problem Display
PID: 99965 (8/p4Q2/R6N/P3P3/4k3/2Pp2pp/2pP2rp/2K4B w - - 0 1)

Neukomm, Gyula (Julius) R

Magyar Sakkvilag, 1948

8/p4Q2/R6N/P3P3/4k3/2Pp2pp/2pP2rp/2K4B

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf5#
  • Tries
    • 1.Bxg2+?
      • 1...Kxe5
        • 2.Sg4#
        • 2.Re6#
        • 2.Qf5#
        • 2.Qf6#
        • 2.Qc7#
      • 1...hxg2!
    • 1.Rc6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...a6!
    • 1.Rf6?
      • 1...Kxe5
        • 2.Qe6#
      • 1...a6!
    • 1.Rg6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...a6!
    • 1.Qc4+?
      • 1...Kxe5
        • 2.Re6#
        • 2.Qd4#
      • 1...Kf3!
    • 1.Qh5?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kd5!
    • 1.Qe6?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kf3!
    • 1.Qf1?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Kd5!
    • 1.Qf2?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#
        • 2.Qf5#
      • 1...gxf2!
    • 1.Qf3+?
      • 1...Kxe5
        • 2.Sg4#
        • 2.Sf7#
        • 2.Qf5#
      • 1...Kxf3!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxf4!
    • 1.Qd7?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kxe5
        • 2.Qf5#
        • 2.Qd4#
      • 1...Kf3!
    • 1.Qf8?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Kd5!
    • 1.c4?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxe5!
    • 1.e6?
      • threat
        • 2.Qf5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.Qxa7!
      • 1...Kf3
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINR(b),P-FLIGHT,XP(F)::QAR1(I)
  • Tries
    • Try
      • B(B);CHECK,XR(b)
      • Refutation
        • P(f);XB(B)
    • Try
      • R(G);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT,XP(F)::QAR1(I)
      • Refutation
        • P(h);
    • Try
      • R(G);
      • Vars
        • K(g);N_SPINR(b),OGATEB,P-FLIGHT,XP(F)::QAR1(I)
      • Refutation
        • P(h);
    • Try
      • R(G);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT,XP(F)::QAR1(I)
      • Refutation
        • P(h);
    • Try
      • Q(I);CHECK
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT,XP(F)::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(g);S_FLIGHT::QAR1(I)
      • Refutation
        • P(e);XQ(I)
    • Try
      • Q(I);CHECK,N_PINR(b)
      • Refutation
        • K(g);P_SPINR(b),S_FLIGHT,XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);OGATE,S_FLIGHT::QAR1(I)
      • Refutation
        • K(g);N_SPINR(b),P-FLIGHT,XQ(I)
    • Try
      • Q(I);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT,XP(F)::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::QAR1(I)
      • Refutation
        • K(g);N_SPINR(b),P-FLIGHT,XP(F)
    • Try
      • P(F);
      • Threat
        • QAB1(I)
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • Q(I);XP(h)
    • Vars
      • K(g);S_FLIGHT::QAR1(I)
      • K(g);N_SPINR(b),P-FLIGHT::QAB1(I)
      • K(g);N_SPINR(b),P-FLIGHT,XP(F)::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).