MESON Chess Problem Database
Problem Display
PID: 170 (4N3/8/1pr5/1P1k4/N3R3/5P1p/5B1K/8 w - - 0 1)
Macleod, Norman Alasdair
Chess World (The), 1950
#2
7 + 4
| 17120 | Tehtavashakin kasikirja (Kallio) | 1995 |
| 3310 | 2345 Chess Problems | 1997 |
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sxb6#
- 1...Rc2
- 2.Sxb6#
- 1...Rc3
- 2.Sxc3#
- 2.Sxb6#
- 1...Rc4
- 2.Sxb6#
- 1...Rc5
- 2.Sxb6#
- 1...Rd6
- 2.Sc3#
- 2.Sc7#
- 1...Re6
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rh6
- 2.Sc3#
- 1...Rc7
- 2.Sxb6#
- 1...Rc8
- 2.Sxb6#
- 1...Rc1
- Tries
- 1.Kxh3?
- 1...Rc1
- 2.Sxb6#
- 1...Rc2
- 2.Sxb6#
- 1...Rc3
- 2.Sxc3#
- 2.Sxb6#
- 1...Rc4
- 2.Sxb6#
- 1...Rc5
- 2.Sxb6#
- 1...Rd6
- 2.Sc3#
- 2.Sc7#
- 1...Re6
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rc7
- 2.Sxb6#
- 1...Rc8
- 2.Sxb6#
- 1...Rh6+!
- 1...Rc1
- 1.Sf6+?
- 1...Kd6
- 2.Bg3#
- 1...Rxf6!
- 1...Kd6
- 1.Bg1?
- 1...Rc1
- 2.Sxb6#
- 1...Rc3
- 2.Sxc3#
- 2.Sxb6#
- 1...Rc4
- 2.Sxb6#
- 1...Rc5
- 2.Sxb6#
- 1...Rd6
- 2.Sc3#
- 2.Sc7#
- 1...Re6
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rh6
- 2.Sc3#
- 1...Rc7
- 2.Sxb6#
- 1...Rc8
- 2.Sxb6#
- 1...Rc2+!
- 1...Rc1
- 1.Be3?
- 1...Rc1
- 2.Sxb6#
- 1...Rc3
- 2.Sxc3#
- 2.Sxb6#
- 1...Rc4
- 2.Sxb6#
- 1...Rc5
- 2.Sxb6#
- 1...Rd6
- 2.Sc3#
- 2.Sc7#
- 1...Re6
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rh6
- 2.Sc3#
- 1...Rc7
- 2.Sxb6#
- 1...Rc8
- 2.Sxb6#
- 1...Rc2+!
- 1...Rc1
- 1.Bg3?
- 1...Rc1
- 2.Sf6#
- 1...Rc3
- 2.Sf6#
- 1...Rc4
- 2.Sf6#
- 1...Rc5
- 2.Sxb6#
- 2.Sf6#
- 1...Rd6
- 2.Sc7#
- 1...Re6
- 2.Sc7#
- 1...Rf6
- 2.Sxf6#
- 2.Sc7#
- 1...Rg6
- 2.Sc7#
- 1...Rh6
- 2.Sc7#
- 1...Rc7
- 2.Sf6#
- 2.Sxc7#
- 1...Rc8
- 2.Sf6#
- 1...Rc2+!
- 1...Rc1
- 1.Kxh3?
- Keys
- 1.Bc5!
- 1...Rxc5
- 2.Sxb6#
- 1...bxc5
- 2.Sc3#
- 1...Rd6
- 2.Sc7#
- 1...Re6
- 2.Sc7#
- 1...Rf6
- 2.Sxf6#
- 2.Sc7#
- 1...Rg6
- 2.Sc7#
- 1...Rh6
- 2.Sc7#
- 1...Rc7
- 2.Sf6#
- 2.Sxc7#
- 1...Rc8
- 2.Sf6#
- 1...Rxc5
- 1.Bc5!
This anticipates 1053(1998)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(d);N_GUARD::S(D),XP(c)
- R(d);N_GUARD,P_PINB(A)::S(D),XP(c)
- R(d);N_GUARD::S(D)
- Tries
- Try
- K(B);P-FLIGHT,XP(a)
- Vars
- R(d);N_GUARD::S(D),XP(c)
- R(d);N_GUARD::S(D)
- Refutation
- R(d);CHECK
- Try
- S(G);CHECK
- Vars
- K(b);P-FLIGHT::B(A)
- Refutation
- R(d);XS(G)
- Try
- B(A);
- Vars
- R(d);N_GUARD::S(D),XP(c)
- R(d);N_GUARD::S(D)
- Refutation
- R(d);CHECK
- Try
- B(A);
- Vars
- R(d);N_GUARD::S(D),XP(c)
- R(d);N_GUARD::S(D)
- Refutation
- R(d);CHECK
- Try
- B(A);
- Vars
- R(d);N_GUARD::S(G)
- Refutation
- R(d);CHECK
- Try
- Actual
- B(A);
- Vars
- R(d);N_GUARD,SBLOCK,XB(A)::S(D),XP(c)
- P(c);SBLOCK,XB(A)::S(D)
- R(d);N_GUARD::S(G)
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).