MESON Chess Problem Database
Problem Display
PID: 22360 (8/8/8/8/4nQ2/1p1k4/1R6/K1R5 w - - 0 1)
Werle, Allan Theodor
Folket, 1946
#2
4 + 3
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
| 4883 | Still More Fun with Chess Miniatures | 2002 |
| 5454 | Near Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sf2
- 2.Rd2#
- 1...Sc3
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Sg5
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 1...Sf6
- 2.Rd2#
- 1...Kd4
- Tries
- 1.Kb1?
- 1...Sd2+
- 2.Rxd2#
- 1...Kd4
- 2.Rd2#
- 1...Sf2
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...Sc5
- 2.Rd2#
- 1...Sg5
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 1...Sf6
- 2.Rd2#
- 1...Sc3+!
- 1...Sd2+
- 1.Rc4?
- threat
- 2.Qxe4#
- 1...Sd2
- 2.Rxd2#
- 1...Sf2
- 2.Rd2#
- 2.Qd4#
- 1...Sc3
- 2.Rd2#
- 2.Rd4#
- 2.Qd4#
- 1...Sg3
- 2.Rd2#
- 2.Qd4#
- 1...Sc5
- 2.Rd2#
- 2.Qd4#
- 1...Sg5
- 2.Rd2#
- 2.Qd4#
- 1...Sd6
- 2.Rd2#
- 2.Qd4#
- 1...Sf6
- 2.Rd2#
- 2.Qd4#
- 1...Kxc4!
- threat
- 1.Rc6?
- 1...Kd4
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sf2
- 2.Rd2#
- 1...Sc3
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...Sg5
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 1...Sf6
- 2.Rd2#
- 1...Sc5!
- 1...Kd4
- 1.Rc7?
- 1...Kd4
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sf2
- 2.Rd2#
- 1...Sc3
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...Sg5
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 1...Sf6
- 2.Rd2#
- 1...Sc5!
- 1...Kd4
- 1.Rc8?
- 1...Kd4
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sf2
- 2.Rd2#
- 1...Sc3
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...Sg5
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 1...Sf6
- 2.Rd2#
- 1...Sc5!
- 1...Kd4
- 1.Kb1?
- Keys
- 1.Qe5!
- 1...Ke3
- 2.Rc3#
- 1...Sc5
- 2.Rc3#
- 1...Sd2
- 2.Rc3#
- 1...Sf2
- 2.Rc3#
- 1...Sc3
- 2.Rxc3#
- 1...Sg3
- 2.Rc3#
- 1...Sg5
- 2.Rc3#
- 1...Sd6
- 2.Rc3#
- 1...Sf6
- 2.Rc3#
- 1...Ke3
- 1.Qe5!
Anticipated by 99668(1927)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(b);P-FLIGHT,P_SPINS(c)::R(C)
- S(c);N_GUARD::R1(C),XS(c)
- S(c);N_GUARD::R1(C)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(c);CHECK,N_GUARD::R1(C),XS(c)
- K(b);P-FLIGHT,P_SPINS(c)::R(C)
- S(c);N_GUARD::R1(C)
- Refutation
- S(c);CHECK
- Try
- R(B);
- Threat
- QAB1(D),XS(c)
- Vars
- S(c);N_GUARD::R1(C),XS(c)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XR(B)
- Try
- R(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(c)::R(C)
- S(c);N_GUARD::R1(C),XS(c)
- S(c);N_GUARD::R1(C)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(c)::R(C)
- S(c);N_GUARD::R1(C),XS(c)
- S(c);N_GUARD::R1(C)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(c)::R(C)
- S(c);N_GUARD::R1(C),XS(c)
- S(c);N_GUARD::R1(C)
- Refutation
- S(c);
- Try
- Actual
- Q(D);
- Vars
- K(b);P-FLIGHT,P_SPINS(c)::R(B)
- S(c);N_GUARD::R1(B)
- S(c);N_GUARD::R1(B),XS(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).