MESON Chess Problem Database
Problem Display
PID: 203237 (8/8/8/8/8/5n1R/5K1p/5Rnk w - - 0 1)
Lester, William Edward
Chess Amateur (The), 1924
#2
3 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Rxg1#
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Sh4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Se1
- Tries
- 1.Ra1?
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Sh4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Se1!
- 1...Sd2
- 1.Rb1?
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Sh4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Se1!
- 1...Sd2
- 1.Rc1?
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Sh4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Se1!
- 1...Sd2
- 1.Rd1?
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Sh4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Se1!
- 1...Sd2
- 1.Re1?
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Sh4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Sxe1!
- 1...Sd2
- 1.Rxh2+?
- 1...Sxh2
- 2.Rxg1#
- 1...Kxh2!
- 1...Sxh2
- 1.Rh4?
- 1...Se1
- 2.Rxg1#
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Sxh4!
- 1...Se1
- 1.Rh5?
- 1...Se1
- 2.Rxg1#
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Sh4!
- 1...Se1
- 1.Rh6?
- 1...Se1
- 2.Rxg1#
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Sh4!
- 1...Se1
- 1.Rh7?
- 1...Se1
- 2.Rxg1#
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Sh4!
- 1...Se1
- 1.Rh8?
- 1...Se1
- 2.Rxg1#
- 1...Sd2
- 2.Rxg1#
- 1...Sd4
- 2.Rxg1#
- 1...Se5
- 2.Rxg1#
- 1...Sg5
- 2.Rxg1#
- 1...Sh4!
- 1...Se1
- 1.Ra1?
- Keys
- 1.Kg3!
- 1...Se1
- 2.Rxh2#
- 1...Sd2
- 2.Rxh2#
- 1...Sd4
- 2.Rxh2#
- 1...Sh4
- 2.Rxh2#
- 1...Se5
- 2.Rxh2#
- 1...Sg5
- 2.Rxh2#
- 1...Se1
- 1.Kg3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::R1(A),XS(a)
- Tries
- Try
- R(A);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINS(a)
- Try
- R(A);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINS(a)
- Try
- R(A);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINS(a)
- Try
- R(A);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINS(a)
- Try
- R(A);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINS(a),XR(A)
- Try
- R(C);CHECK,XP(c)
- Vars
- S(d);SBLOCK,XR(C)::R1(A),XS(a)
- Refutation
- K(b);N_SPINS(a),P-FLIGHT,XR(C)
- Try
- R(C);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINP(c),XR(C)
- Try
- R(C);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINP(c)
- Try
- R(C);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINP(c)
- Try
- R(C);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINP(c)
- Try
- R(C);
- Vars
- S(d);N_GUARD::R1(A),XS(a)
- Refutation
- S(d);N_SPINP(c)
- Try
- Actual
- K(B);S_FLIGHT
- Vars
- S(d);N_GUARD::R1(C),XP(c)
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).