MESON Chess Problem Database

Problem Display
PID: 276140 (1r2k2r/Q5p1/n1N4P/5BPp/5nbK/b7/6p1/3R1R2 w k - 0 1)

Labai, Zoltan

Svitek, Miroslav

Problem Paradise, 2024

1r2k2r/Q5p1/n1N4P/5BPp/5nbK/b7/6p1/3R1R2

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Rd8#
    • 1...Rb2
      • 2.Rd8#
    • 1...Rb3
      • 2.Rd8#
    • 1...Rb4
      • 2.Rd8#
      • 2.Qe7#
    • 1...Rb5
      • 2.Rd8#
    • 1...Rb6
      • 2.Rd8#
    • 1...Rd8
      • 2.Rxd8#
    • 1...Rf8
      • 2.Qd7#
    • 1...Bc1
      • 2.Qe7#
    • 1...Bb2
      • 2.Qe7#
    • 1...Be7
      • 2.Qxe7#
    • 1...Bf8
      • 2.Qd7#
    • 1...Se2
      • 2.Bg6#
    • 1...Sd3
      • 2.Bg6#
    • 1...Sh3
      • 2.Bg6#
    • 1...Sd5
      • 2.Bg6#
    • 1...Se6
      • 2.Bg6#
    • 1...Sg6+
      • 2.Bxg6#
    • 1...Sb4
      • 2.Qe7#
    • 1...Sc5
      • 2.Qe7#
    • 1...0-0
      • 2.Qxg7#
  • Tries
    • 1.Bg6+?
      • 1...Kf8
        • 2.Qf7#
        • 2.Qxg7#
      • 1...Sxg6+!
    • 1.Rde1+?
      • 1...Kf8
        • 2.Qxg7#
      • 1...Be7
        • 2.Qxe7#
      • 1...Se2
        • 2.Bg6#
      • 1...Se6
        • 2.Bg6#
      • 1...Be2!
  • Keys
    • 1.g6!
      • threat
        • 2.Qf7#
      • 1...Be7+
        • 2.Qxe7#
      • 1...Sxg6+
        • 2.Bxg6#
      • 1...Kf8
        • 2.Qf7#
      • 1...0-0
        • 2.Qxg7#
      • 1...Rb7
        • 2.Rd8#
      • 1...Rf8
        • 2.Qd7#
      • 1...Sc7
        • 2.Qxb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 16
  • Sets
    • R(h);N_GUARD::R1(A)
    • R(h);N_GUARD::R1(A),XR(h)
    • R(j);SBLOCK::QAB1(H)
    • B(b);N_GUARD::QAR1(H)
    • B(b);N_GUARD,P_PINP(E)::QAR1(H),XB(b)
    • B(b);SBLOCK::QAB1(H)
    • S(c);N_GUARD::B(D)
    • S(c);CHECK,N_GUARD::B(D),XS(c)
    • S(f);S_CUTB(b)::QAR1(H)
    • K(i);0-0,OGATEB::QAR1(H),XP(g)
  • Tries
    • Try
      • B(D);CHECK
      • Refutation
        • S(c);CHECK,XB(D)
    • Try
      • R(A);CHECK
      • Vars
        • K(i);P-FLIGHT,S_CUTB(b),S_CUTB(d),S_CUTS(c),S_CUTS(c)::QAB1(H),XP(g)
        • B(b);N_GUARD,P_PINP(E),P_SPINB(b)::QAR1(H),XB(b)
        • S(c);P_SPINS(c)::B(D)
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • P(E);
    • Threat
      • QAB1(H)
    • Vars
      • B(b);CHECK,N_GUARD::QAR1(H),XB(b)
      • S(c);CHECK,OGATE,XP(E)::B(D),XS(c)
      • K(i);P-FLIGHT::QAR1(H)
      • K(i);0-0,OGATEB::QAR1(H),XP(g)
      • R(h);N_GUARD::R1(A)
      • R(j);SBLOCK::QAB1(H)
      • S(f);N_GUARD::QAR(H),XR(h)
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).