MESON Chess Problem Database

Problem Display
PID: 266649 (B3R3/Q7/1P2R3/3pPPP1/3Pk3/N2N2PK/4PP2/8 w - d5 0 1)

Stojnic, Dragan

1st Prize, SuperProblem 267. TT, 2022

B3R3/Q7/1P2R3/3pPPP1/3Pk3/N2N2PK/4PP2/8

#2

15 + 2

1232 Kudesnik 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kh4?
      • 1...Kxf5
        • 2.Qh7#
      • 1...Kxd4!
    • 1.Sb1?
      • 1...Kxd4
        • 2.Qa4#
      • 1...Kxf5!
    • 1.Rc6?
      • 1...Kxd4
        • 2.Qa4#
      • 1...Kxf5!
    • 1.Rc8?
      • 1...Kxd4
        • 2.Qa4#
      • 1...Kxf5!
    • 1.Qa5?
      • 1...Kxd4
        • 2.Qb4#
      • 1...Kxf5!
    • 1.Qe7?
      • 1...Kxd4
        • 2.Qb4#
      • 1...Kxf5!
    • 1.Qg7?
      • 1...Kxf5
        • 2.Qg6#
      • 1...Kxd4!
  • Keys
    • 1.exd5 ep+!
      • 1...Kxd4
        • 2.Qg7#
      • 1...Kxf5
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XP(I)::QAB(M)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XP(G)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XP(G)::QAR(M)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XP(I)
    • Try
      • R(L);N_PINP(b)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(G)::QAR(M)
      • Refutation
        • K(a);S_FLIGHT,XP(I)
    • Try
      • R(O);
      • Vars
        • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XP(G)::QAR(M)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XP(I)
    • Try
      • Q(M);
      • Vars
        • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XP(G)::QAR2(M)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XP(I)
    • Try
      • Q(M);
      • Vars
        • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XP(G)::QAR2(M)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XP(I)
    • Try
      • Q(M);
      • Vars
        • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XP(I)::QAB1(M)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XP(G)
  • Actual
    • P(H);CHECK,EP,XP(b)
    • Vars
      • K(a);N_GUARD,P-FLIGHT,XP(G)::QAB(M)
      • K(a);N_GUARD,S_FLIGHT,XP(I)::QAR(M)
HTML5 logo

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).