MESON Chess Problem Database

Problem Display
PID: 175484 (4N2B/1R6/3N4/pPk5/p1p4p/p1R4B/P5K1/8 w - - 0 1)

Bristow, Henry

San Francisco Chronicle, 1899

4N2B/1R6/3N4/pPk5/p1p4p/p1R4B/P5K1/8

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kb4
      • 2.Rxc4#
  • Tries
    • 1.Kf1?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Kg1?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Kh1?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Kf2?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Kh2?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Kf3?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Sc7?
      • 1...Kb4
        • 2.Sa6#
        • 2.Rxc4#
      • 1...Kxd6!
    • 1.Be6?
      • threat
        • 2.Rxc4#
      • 1...Kb4
        • 2.Rxc4#
      • 1...h3+!
    • 1.Be5?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Bf6?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Bg7?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
    • 1.Rb6?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kxb6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Ra7?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Rc7+?
      • 1...Kb4
        • 2.R3xc4#
        • 2.R7xc4#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Rd7?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Re7?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Rf7?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Rg7?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd4
        • 2.Rg5#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kb6!
    • 1.Rb8?
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5!
  • Keys
    • 1.Rh7!
      • 1...Kb4
        • 2.Rxc4#
      • 1...Kd5
        • 2.Rh5#
      • 1...Kb6
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • S(H);
      • Refutation
        • K(f);N_SPINP(c),S_FLIGHT,XS(F)
    • Try
      • B(D);
      • Threat
        • R1(C),XP(c)
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • P(d);CHECK
    • Try
      • B(I);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • B(I);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • B(I);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
        • K(f);N_SPINP(c),S_FLIGHT,XR(G)::B(I)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
        • K(f);N_SPINP(c),S_FLIGHT::B(I)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::B(I)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
        • K(f);N_SPINP(c),S_FLIGHT::B(I)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
        • K(f);N_SPINP(c),S_FLIGHT::B(I)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
        • K(f);N_SPINP(c),S_FLIGHT::B(I)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
        • K(f);N_SPINP(c),S_FLIGHT::B(I)+R(G)
        • K(f);N_SPINP(c),P-FLIGHT::R(G)
      • Refutation
        • K(f);N_SPINP(c),S_FLIGHT
    • Try
      • R(G);
      • Vars
        • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • Refutation
        • K(f);N_SPINP(c),P-FLIGHT
  • Actual
    • R(G);
    • Vars
      • K(f);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • K(f);N_SPINP(c),P-FLIGHT::R(G)
      • K(f);N_SPINP(c),S_FLIGHT::B(I)
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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).