MESON Chess Problem Database

Problem Display
PID: 186775 (7B/8/6R1/1N2P3/1pP1kp2/b6Q/2b2P2/4K3 w - - 0 1)

Syzonenko, Viktor N

Phenix, 2018

7B/8/6R1/1N2P3/1pP1kp2/b6Q/2b2P2/4K3

#2

8 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Kd2?
      • threat
        • 2.f3#
      • 1...f3
        • 2.Qg4#
      • 1...Bd1
        • 2.Qd3#
      • 1...Bc1+!
    • 1.Ke2?
      • threat
        • 2.f3#
      • 1...Bd3+
        • 2.Qxd3#
      • 1...f3+
        • 2.Qxf3#
      • 1...Bd1+!
    • 1.Qg2+?
      • 1...Kd3
        • 2.Qd5#
      • 1...Kf5
        • 2.Sd4#
        • 2.Sd6#
      • 1...f3!
    • 1.Qf5+?
      • 1...Kf3
        • 2.Sd4#
        • 2.Rg3#
      • 1...Kxf5!
    • 1.e6?
      • threat
        • 2.Sd6#
      • 1...b3
        • 2.Sc3#
      • 1...f3!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Rg3#
      • 1...Kd3
        • 2.Rc6#
      • 1...Kf3
        • 2.Qh1#
      • 1...Kf5
        • 2.Sd6#
      • 1...f3
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • P(B)
      • Vars
        • P(e);OGATEB::QAR2(C)
        • B(a);N_GUARD::QAB1(C)
      • Refutation
        • B(b);CHECK
    • Try
      • K(A);P-FLIGHT
      • Threat
        • P(B)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(e);CHECK::QAB1(C),XP(e)
      • Refutation
        • B(a);CHECK
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR2(C)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(C)
    • Try
      • P(F);
      • Threat
        • S(E)
      • Vars
        • P(c);N_GUARD::S(E)
      • Refutation
        • P(e);
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+R(G)
    • Vars
      • K(d);S_FLIGHT::QAB(C)+R(G)
      • K(d);S_FLIGHT::QAB(C)
      • K(d);S_FLIGHT::S(E)
      • P(e);SBLOCK::QAB(C)+R(G),DCHECK
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).