MESON Chess Problem Database

Problem Display
PID: 156765 (1B4Q1/5K2/3N3p/7B/2pk4/2Nn4/3R2p1/1R6 w - - 0 1)

Amirov, Talip Khasanovich

Rokov L.lacneho, 1976

1B4Q1/5K2/3N3p/7B/2pk4/2Nn4/3R2p1/1R6

#2

8 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sde4?
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Ke3!
    • 1.Sdb5+?
      • 1...Ke3
        • 2.Re2#
      • 1...Kc5!
    • 1.Sf5+?
      • 1...Kc5
        • 2.Qc8#
      • 1...Kxc3!
    • 1.Ba7+?
      • 1...Kxc3
        • 2.Se4#
      • 1...Ke5!
    • 1.Qg4+?
      • 1...Ke3
        • 2.Sxc4#
        • 2.Re2#
      • 1...Kc5
        • 2.Qxc4#
      • 1...Ke5
        • 2.Sxc4#
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Sb7#
        • 2.Sc8#
        • 2.Se8#
        • 2.Re2#
        • 2.Qe4#
      • 1...Kxc3!
    • 1.Qg5?
      • threat
        • 2.Se2#
        • 2.Scb5#
        • 2.Sdb5#
      • 1...Kxc3
        • 2.Sb5#
      • 1...g1S
        • 2.Scb5#
        • 2.Sdb5#
      • 1...hxg5!
    • 1.Qg7+?
      • 1...Ke3
        • 2.Sxc4#
      • 1...Kc5!
    • 1.Qh8+?
      • 1...Ke3
        • 2.Sxc4#
      • 1...Kc5!
  • Keys
    • 1.Qxg2!
      • 1...Kxc3
        • 2.Sb5#
      • 1...Ke3
        • 2.Sf5#
      • 1...Kc5
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • P(a);OGATE::QAB(H),XQ(a)
        • P(a);OGATE::QAB(H),XS(a)
        • P(a);OGATE::QAB(H),XB(a)
        • P(a);OGATE::QAB(H),XR(a)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT::R1(B)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT::QAR(H)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT,XS(C)
    • Try
      • B(G);CHECK
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT,XS(C)::S(E)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);N_SPINS(b),OGATE,S_FLIGHT::QAR1(H),XP(c)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT,XS(C)::S(E)
      • Refutation
        • P(e);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT::S(E),XP(c)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT::S(E),XP(c)
      • Refutation
        • K(d);N_SPINS(b),S_FLIGHT
  • Actual
    • Q(H);XP(a)
    • Vars
      • K(d);N_SPINS(b),S_FLIGHT,XS(C)::S(E)
      • K(d);N_SPINS(b),S_FLIGHT::S(E)
      • K(d);N_SPINS(b),S_FLIGHT::QAR1(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).