MESON Chess Problem Database

Problem Display
PID: 268409 (1Q6/8/2pBP1p1/6P1/2p1k3/R1P1N1P1/R7/1K1N4 w - - 0 1)

Peretyaka, Viktor Yakovlevich

Shakhmatnaya kompozitsiya, 1996

1Q6/8/2pBP1p1/6P1/2p1k3/R1P1N1P1/R7/1K1N4

#2

11 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Kc2?
      • 1...c5
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kf3!
    • 1.Rd2?
      • 1...c5
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kf3!
    • 1.Qb2?
      • 1...Kd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qg2#
      • 1...c5!
    • 1.Qb6?
      • 1...Kd3
        • 2.Sf2#
        • 2.Qd4#
      • 1...Kf3
        • 2.Qxc6#
      • 1...c5!
    • 1.Qb7?
      • 1...Kf3
        • 2.Qxc6#
      • 1...Kd3!
    • 1.Qa8?
      • 1...Kf3
        • 2.Qxc6#
      • 1...Kd3!
    • 1.Qe8?
      • 1...Kd3
        • 2.Qxg6#
      • 1...Kf3
        • 2.Qxc6#
      • 1...c5!
    • 1.Qh8?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qh1#
      • 1...c5!
  • Keys
    • 1.Bc5!
      • 1...Kd3
        • 2.Sf2#
      • 1...Kf3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(K);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(K)
      • Refutation
        • P(c);
    • Try
      • Q(K);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(K),XP(c)
      • Refutation
        • P(c);
    • Try
      • Q(K);P_PINP(c)
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(K),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(K);P_PINP(c)
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(K),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(K);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(K),XP(d)
        • K(b);N_GUARD,S_FLIGHT::QAB(K),XP(c)
      • Refutation
        • P(c);
    • Try
      • Q(K);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR1(K)
        • K(b);N_GUARD,S_FLIGHT::QAB(K)
      • Refutation
        • P(c);
  • Actual
    • B(I);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::S(B)
      • K(b);N_GUARD,S_FLIGHT::QAR1(K)
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).