MESON Chess Problem Database
Problem Display
PID: 221892 (8/4n3/R2p4/2kN3p/PNn4R/p2p4/K2P4/8 w - - 0 1)
Mumme, W
Funkschach, 1926
#2
7 + 7
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Ra5#
- 1...Sxd2
- 2.Ra5#
- 1...Se3
- 2.Ra5#
- 1...Sa5
- 2.Rxa5#
- 1...Se5
- 2.Ra5#
- 1...Sb6
- 2.Ra5#
- 1...Sxd5
- 2.Sxd3#
- 1...Sf5
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sg6
- 2.Rc6#
- 1...Sc8
- 2.Rc6#
- 1...Sg8
- 2.Rc6#
- 1...Sb2
- Tries
- 1.Ka1?
- 1...Sxd2
- 2.Ra5#
- 1...Sxd5
- 2.Sxd3#
- 1...Sb2
- 2.Ra5#
- 1...Se3
- 2.Ra5#
- 1...Sa5
- 2.Rxa5#
- 1...Se5
- 2.Ra5#
- 1...Sb6
- 2.Ra5#
- 1...Sf5
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sg6
- 2.Rc6#
- 1...Sc8
- 2.Rc6#
- 1...Sg8
- 2.Rc6#
- 1...a2!
- 1...Sxd2
- 1.Kb3?
- threat
- 2.Rxc4#
- 1...Sa5+
- 2.Rxa5#
- 1...Sb2
- 2.Ra5#
- 1...Se3
- 2.Ra5#
- 1...Se5
- 2.Ra5#
- 1...Sb6
- 2.Ra5#
- 1...Sxd2+!
- threat
- 1.Sc7?
- threat
- 2.Sxd3#
- 1...Sb2
- 2.Se6#
- 1...Se5
- 2.Se6#
- 1...Sb6
- 2.Se6#
- 2.Ra5#
- 1...Kxb4!
- threat
- 1.Re4?
- 1...Sxd2
- 2.Ra5#
- 1...Sxd5
- 2.Sxd3#
- 1...Se5
- 2.Ra5#
- 1...Sb2
- 2.Ra5#
- 1...Se3
- 2.Ra5#
- 1...Sa5
- 2.Rxa5#
- 1...Sb6
- 2.Ra5#
- 1...Sf5
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sg6
- 2.Rc6#
- 1...Sc8
- 2.Rc6#
- 1...Sg8
- 2.Rc6#
- 1...h4!
- 1...Sxd2
- 1.Rf4?
- 1...Sxd2
- 2.Ra5#
- 1...Sxd5
- 2.Sxd3#
- 1...Se5
- 2.Ra5#
- 1...Sb2
- 2.Ra5#
- 1...Se3
- 2.Ra5#
- 1...Sa5
- 2.Rxa5#
- 1...Sb6
- 2.Ra5#
- 1...Sf5
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sg6
- 2.Rc6#
- 1...Sc8
- 2.Rc6#
- 1...Sg8
- 2.Rc6#
- 1...h4!
- 1...Sxd2
- 1.Ka1?
- Keys
- 1.Sf4!
- threat
- 2.Sfxd3#
- 1...Kxb4
- 2.Sxd3#
- 1...Kd4
- 2.Sfxd3#
- 1...Sb2
- 2.Se6#
- 1...Se5
- 2.Se6#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- S(c);N_GUARD::R(G)
- S(c);N_GUARD,XP(B)::R(G)
- S(c);N_GUARD::R(G),XS(c)
- S(g);SBLOCK,XS(F)::S(D),XP(b)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(c);N_GUARD,XP(B)::R(G)
- S(g);SBLOCK,XS(F)::S(D),XP(b)
- S(c);N_GUARD::R(G)
- S(c);N_GUARD::R(G),XS(c)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- P(a);
- Try
- K(A);S_FLIGHT
- Threat
- R1(E),XS(c)
- Vars
- S(c);CHECK,N_GUARD::R(G),XS(c)
- S(c);N_GUARD::R(G)
- Refutation
- S(c);CHECK,XP(B)
- Try
- S(F);
- Threat
- S(D),XP(b)
- Vars
- S(c);::S(F)
- Refutation
- K(d);P_SPINS(c),S_FLIGHT,XS(D)
- Try
- R(E);
- Vars
- S(c);N_GUARD,XP(B)::R(G)
- S(g);SBLOCK,XS(F)::S(D),XP(b)
- S(c);N_GUARD::R(G)
- S(c);N_GUARD::R(G),XS(c)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- P(e);
- Try
- R(E);
- Vars
- S(c);N_GUARD,XP(B)::R(G)
- S(g);SBLOCK,XS(F)::S(D),XP(b)
- S(c);N_GUARD::R(G)
- S(c);N_GUARD::R(G),XS(c)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- P(e);
- Try
- Actual
- S(F);
- Threat
- S(F),XP(b)
- Vars
- K(d);S_FLIGHT,XS(D)::S(F),XP(b)
- K(d);S_FLIGHT::R(E)+S(F),XP(b)
- S(c);::S(F)
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).