MESON Chess Problem Database

Problem Display
PID: 231481 (8/8/3Np3/3pP2p/p2kb2R/B1p2pQR/2p1PP2/2K5 w - - 0 1)

Boros, Sandor

Zilahi, Zoltan

Nepszava, 1927

8/8/3Np3/3pP2p/p2kb2R/B1p2pQR/2p1PP2/2K5

#2

9 + 9

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...fxe2
      • 2.Qxc3#
  • Tries
    • 1.Sb7?
      • 1...fxe2
        • 2.Qxc3#
      • 1...Kc4!
    • 1.Sf7?
      • 1...fxe2
        • 2.Qxc3#
        • 2.Qd3#
      • 1...Kc4!
    • 1.Sc8?
      • 1...fxe2
        • 2.Qxc3#
      • 1...Kc4!
    • 1.Se8?
      • 1...fxe2
        • 2.Qxc3#
      • 1...Kc4!
    • 1.Bb4?
      • 1...fxe2
        • 2.Qxc3#
      • 1...a3!
    • 1.Qg6?
      • 1...Kxe5
        • 2.Qg7#
      • 1...fxe2!
    • 1.Qg8?
      • 1...Kxe5
        • 2.Qg7#
        • 2.Qh8#
      • 1...fxe2!
  • Keys
    • 1.Qg1!
      • 1...Kxe5
        • 2.Qg7#
      • 1...fxe2
        • 2.f4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE,XP(B)::QAB1(E),XP(b)
  • Tries
    • Try
      • S(I);
      • Vars
        • P(c);OGATE,XP(B)::QAB1(E),XP(b)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(I);
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(I);
      • Vars
        • P(c);OGATE,XP(B)::QAB1(E),XP(b)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(I);
      • Vars
        • P(c);OGATE,XP(B)::QAB1(E),XP(b)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • P(c);OGATE,XP(B)::QAB1(E),XP(b)
      • Refutation
        • P(d);
    • Try
      • Q(E);
      • Vars
        • K(e);N_SPINB(f),OGATEB,S_FLIGHT,XP(H)::QAB(E)
      • Refutation
        • P(c);XP(B)
    • Try
      • Q(E);
      • Refutation
        • P(c);XP(B)
  • Actual
    • Q(E);
    • Vars
      • K(e);N_SPINB(f),OGATEB,S_FLIGHT,XP(H)::QAB(E)
      • P(c);OGATE,XP(B)::QAB(E)+P(C)
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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).