MESON Chess Problem Database

Problem Display
PID: 205011 (4RB1K/2b1nB2/1p2R1p1/1P1k2p1/P3p1p1/4P1P1/2N1P3/8 w - - 0 1)

Barry, Henry William

American Chess Bulletin, 1916

4RB1K/2b1nB2/1p2R1p1/1P1k2p1/P3p1p1/4P1P1/2N1P3/8

#2

11 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Rc6#
    • 1...Kc5
      • 2.Rc6#
    • 1...Sf5
      • 2.Rxe4#
      • 2.Re5#
      • 2.Rxb6#
      • 2.Rc6#
      • 2.Rf6#
      • 2.Rxg6#
    • 1...Sc6
      • 2.Rxe4#
      • 2.Re5#
      • 2.Rxc6#
      • 2.Rf6#
      • 2.Rxg6#
    • 1...Sc8
      • 2.Rxe4#
      • 2.Re5#
      • 2.Rxb6#
      • 2.Rc6#
      • 2.Rf6#
      • 2.Rxg6#
    • 1...Sg8
      • 2.Rxe4#
      • 2.Re5#
      • 2.Rxb6#
      • 2.Rc6#
      • 2.Rf6#
      • 2.Rxg6#
  • Tries
    • 1.Bg7?
      • threat
        • 2.Rc6#
      • 1...Kc4
        • 2.Rc6#
      • 1...Bd6
        • 2.Re5#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Kc5!
    • 1.Re5+?
      • 1...Kd6
        • 2.Rd5#
      • 1...Kxe5!
    • 1.Rxb6+?
      • 1...Kc5
        • 2.Rc6#
      • 1...Ke5!
    • 1.Rf6+?
      • 1...Kc5
        • 2.Rc6#
      • 1...Ke5!
    • 1.Rxg6+?
      • 1...Kc5
        • 2.Rc6#
      • 1...Ke5!
    • 1.R6xe7+?
      • 1...Kc5
        • 2.Re5#
        • 2.Rxc7#
      • 1...Kd6!
    • 1.R8xe7?
      • threat
        • 2.Rc6#
      • 1...Kc4
        • 2.Rc6#
      • 1...Kc5
        • 2.Rc6#
      • 1...Bd6
        • 2.Re5#
      • 1...Be5+!
  • Keys
    • 1.Rc8!
      • 1...Be5+
        • 2.Rf6#
      • 1...Kc4
        • 2.Rc6#
      • 1...Kc5
        • 2.Rc6#
      • 1...Bxg3
        • 2.Sb4#
      • 1...Sxc8
        • 2.Re8#
      • 1...Bf4
        • 2.Sb4#
      • 1...Bd6
        • 2.Rxe7#
      • 1...Bb8
        • 2.Sb4#
      • 1...Bd8
        • 2.Sb4#
      • 1...Sf5
        • 2.Ree8#
      • 1...Sc6
        • 2.Ree8#
      • 1...Sg8
        • 2.Ree8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::B(H)+R(G),DCHECK
    • K(c);P-FLIGHT,P_SPINS(h)::R1(G)
  • Tries
    • Try
      • B(J);
      • Threat
        • B(H)+R(G)
      • Vars
        • K(c);S_FLIGHT::B(H)+R(G),DCHECK
        • B(g);SBLOCK::B(H)+R(G),DCHECK
        • S(h);::B(H)+R(G),XS(h)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(h)::R1(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(h),XR(G)
    • Try
      • R(G);CHECK,XP(e)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(h)::R1(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(h)
    • Try
      • R(G);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(h)::R1(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(h)
    • Try
      • R(G);CHECK,XP(f)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(h)::R1(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(h)
    • Try
      • R(G);CHECK,XS(h)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(I);XS(h)
      • Threat
        • B(H)+R(G)
      • Vars
        • K(c);S_FLIGHT::B(H)+R(G),DCHECK
        • K(c);P-FLIGHT::R1(G)
        • B(g);SBLOCK::B(H)+R(G),DCHECK
      • Refutation
        • B(g);CHECK
  • Actual
    • R(I);
    • Vars
      • B(g);CHECK,SBLOCK::B(H)+R(G)
      • K(c);P_SPINB(g),S_FLIGHT::B(H)+R(G),DCHECK
      • K(c);P-FLIGHT,P_SPINB(g),P_SPINS(h)::R1(G)
      • B(g);XP(D)::S(A)
      • S(h);OGATE,XR(I)::B(H)+R(G)
      • B(g);::S(A)
      • B(g);SBLOCK::B(H)+R(G),XS(h)
      • S(h);OGATE::B(H)+R(G)
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).