MESON Chess Problem Database
Problem Display
PID: 17823 (8/2N1K1p1/4p1B1/4k3/6R1/4P2b/3n1N2/4n3 w - - 0 1)
Barron, Philip
Chess, 1951
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Rg5#
- 1...Bg2
- 2.Rg5#
- 1...Bxg4
- 2.Sxg4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sef3
- 2.Sd3#
- 1...Sb1
- 2.Re4#
- 1...Sf1
- 2.Re4#
- 1...Sb3
- 2.Re4#
- 1...Sdf3
- 2.Re4#
- 1...Sc4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Bf1
- Tries
- 1.Sxh3?
- threat
- 2.Rg5#
- 1...Sdf3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sef3!
- threat
- 1.Ra4?
- threat
- 2.Ra5#
- 1...Bf1
- 2.Sg4#
- 1...Bg2
- 2.Sg4#
- 1...Sd3
- 2.Sxd3#
- 1...Sb3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sc4!
- threat
- 1.Rc4?
- threat
- 2.Rc5#
- 1...Bg2
- 2.Sg4#
- 1...Sd3
- 2.Sxd3#
- 1...Sb3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sxc4!
- threat
- 1.Rd4?
- 1...Sc2
- 2.Sd3#
- 1...Bf1
- 2.Sg4#
- 1...Bg2
- 2.Sg4#
- 1...Bg4
- 2.Sxg4#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sef3
- 2.Sd3#
- 1...Sb1
- 2.Re4#
- 1...Sf1
- 2.Re4#
- 1...Sb3
- 2.Re4#
- 1...Sdf3
- 2.Re4#
- 1...Sc4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Bf5!
- 1...Sc2
- 1.Rf4?
- 1...Bf1
- 2.Sg4#
- 1...Bg2
- 2.Sg4#
- 1...Bg4
- 2.Sxg4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sef3
- 2.Sd3#
- 1...Sb1
- 2.Re4#
- 1...Sf1
- 2.Re4#
- 1...Sb3
- 2.Re4#
- 1...Sdf3
- 2.Re4#
- 1...Sc4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Bf5!
- 1...Bf1
- 1.Rh4?
- 1...Bf1
- 2.Sg4#
- 2.Rh5#
- 1...Bg2
- 2.Sg4#
- 2.Rh5#
- 1...Bg4
- 2.Sxg4#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sef3
- 2.Sd3#
- 1...Sb1
- 2.Re4#
- 1...Sf1
- 2.Re4#
- 1...Sb3
- 2.Re4#
- 1...Sdf3
- 2.Re4#
- 1...Sc4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Bf5!
- 1...Bf1
- 1.Sxh3?
- Keys
- 1.Rb4!
- threat
- 2.Rb5#
- 1...Bf1
- 2.Sg4#
- 1...Bg2
- 2.Sg4#
- 1...Sd3
- 2.Sxd3#
- 1...Sb3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- threat
- 1.Rb4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- B(c);N_GUARD::R(C)
- B(c);XR(C)::S(A),XB(c)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Tries
- Try
- S(A);XB(c)
- Threat
- R(C)
- Vars
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- R(C)
- Vars
- B(c);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- S(b);
- Try
- R(C);
- Threat
- R(C)
- Vars
- B(c);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- S(b);XR(C)
- Try
- R(C);
- Vars
- S(a);N_GUARD::S(A)
- B(c);N_GUARD::S(A)
- B(c);N_GUARD::S(A),XB(c)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- B(c);
- Try
- R(C);
- Vars
- B(c);N_GUARD::S(A)
- B(c);N_GUARD::S(A),XB(c)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- B(c);
- Try
- R(C);
- Vars
- B(c);N_GUARD::S(A),XB(c)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- B(c);
- Try
- Actual
- R(C);
- Threat
- R(C)
- Vars
- B(c);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
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).