MESON Chess Problem Database
Problem Display
PID: 229193 (1R5K/4N3/5n2/2Q1p3/r1n1Pp2/1pk2N2/3R4/1B6 w - - 0 1)
Rothler, Emil
Uj Nemezdek, 1926
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Rd3#
- 1...Ra1
- Tries
- 1.Ba2?
- threat
- 2.Rxb3#
- 1...Rxa2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra8
- 2.Qb4#
- 1...b2
- 2.Rb3#
- 1...bxa2!
- threat
- 1.Bd3?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 2.Qxc4#
- 1...Ra2
- 2.Qb4#
- 2.Qxc4#
- 1...Ra3
- 2.Qb4#
- 2.Qxc4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 2.Qxc4#
- 1...Ra6
- 2.Qb4#
- 2.Qxc4#
- 1...Ra7
- 2.Qb4#
- 2.Qxc4#
- 1...Ra8
- 2.Qb4#
- 2.Qxc4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2!
- 1...Sxe4
- 1.Re2?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2!
- 1...Sxe4
- 1.Rf2?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2!
- 1...Sxe4
- 1.Rg2?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2!
- 1...Sxe4
- 1.Rh2?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Ra8
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2!
- 1...Sxe4
- 1.Rb5?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Rd3#
- 1...Ra8+!
- 1...Sxe4
- 1.Rb6?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Rd3#
- 1...Ra8+!
- 1...Sxe4
- 1.Rb7?
- 1...Sxe4
- 2.Sd5#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Ra5
- 2.Qb4#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qb4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Rd3#
- 1...Ra8+!
- 1...Sxe4
- 1.Rbd8?
- threat
- 2.R8d3#
- 1...Sd5
- 2.Sxd5#
- 1...Sd7
- 2.Sd5#
- 1...Ra8!
- threat
- 1.Ba2?
- Keys
- 1.Rc8!
- 1...Sxe4
- 2.Sd5#
- 1...b2
- 2.Rd3#
- 1...Sg4
- 2.Sd5#
- 1...Ra1
- 2.Qxc4#
- 1...Ra2
- 2.Qxc4#
- 1...Ra3
- 2.Qxc4#
- 1...Rb4
- 2.Qxe5#
- 1...Ra5
- 2.Qxc4#
- 2.Qxa5#
- 1...Ra6
- 2.Qxc4#
- 1...Ra7
- 2.Qxc4#
- 1...Ra8
- 2.Qxc4#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Sd7
- 2.Sd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...Sxe4
- 1.Rc8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAB1(E)
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(a);::R1(B)
- Tries
- Try
- B(A);
- Threat
- R1(G),XP(a)
- Vars
- R(c);N_GUARD,XB(A)::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAB1(E)
- P(a);::R1(G)
- Refutation
- P(a);XB(A)
- Try
- B(A);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E),XR(c)
- S(g);N_GUARD::S(F),XS(g)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAB1(E)
- S(g);N_GUARD::S(F),XS(g)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAB1(E)
- S(g);N_GUARD::S(F),XS(g)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAB1(E)
- S(g);N_GUARD::S(F),XS(g)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAB1(E)
- S(g);N_GUARD::S(F),XS(g)
- Refutation
- P(a);
- Try
- R(G);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- S(g);N_GUARD::S(F),XS(g)
- P(a);::R1(B)
- Refutation
- R(c);CHECK
- Try
- R(G);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- S(g);N_GUARD::S(F),XS(g)
- P(a);::R1(B)
- Refutation
- R(c);CHECK
- Try
- R(G);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- S(g);N_GUARD::S(F),XS(g)
- P(a);::R1(B)
- Refutation
- R(c);CHECK
- Try
- R(G);
- Threat
- R1(G)
- Vars
- S(g);N_GUARD::S(F),XS(g)
- S(g);N_GUARD::S(F)
- Refutation
- R(c);P_PINR(G)
- Try
- Actual
- R(G);
- Vars
- S(g);N_GUARD,XP(D)::S(F)
- P(a);SBLOCK::R1(B)
- S(g);N_GUARD::S(F)
- R(c);N_GUARD::QAR1(E),XS(d)
- R(c);SBLOCK::QAB(E),XP(f)
- R(c);N_GUARD,P_PINR(G)::QAR1(E),XS(d)
- S(g);N_GUARD::S(F),XS(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).