MESON Chess Problem Database

Problem Display
PID: 266654 (8/1p1p1B2/1P1k4/2N3BR/KP6/2N5/8/2R5 w - - 0 1)

Tyunin, Aleksandr Dmitrevich

2nd Comm., SuperProblem 267. TT, 2022

8/1p1p1B2/1P1k4/2N3BR/KP6/2N5/8/2R5

#2

9 + 3

1232 Kudesnik 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • 1...Ke5
        • 2.Be7#
      • 1...Kc6!
    • 1.S3e4+?
      • 1...Ke5
        • 2.Be3#
      • 1...Kc6!
    • 1.Sd5?
      • 1...Kc6
        • 2.Se4#
      • 1...Ke5!
    • 1.Be8?
      • 1...Kc6
        • 2.Rh6#
      • 1...Ke5!
    • 1.Rd1+?
      • 1...Ke5
        • 2.Rd5#
      • 1...Kc6!
  • Keys
    • 1.S5e4+!
      • 1...Ke5
        • 2.Be3#
      • 1...Kc6
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R(G)+B(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R(G)+B(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(A)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(I);
      • Vars
        • K(a);N_GUARD,P-FLIGHT,P_SPINP(c)::R(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(E);CHECK
    • Vars
      • K(a);N_GUARD,S_FLIGHT::R(G)+B(F)
      • K(a);N_GUARD,P-FLIGHT::R(A)+S(B)
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).