MESON Chess Problem Database
Problem Display
PID: 92291 (8/3p4/3K4/6p1/4R3/5kpQ/2n2pN1/2N2R1n w - - 0 1)
Hermanson, Halvar
Schach-Echo, 1955
#2
6 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qg4#
- 1...Sa1
- 2.Re3#
- 1...Se1
- 2.Re3#
- 1...Sa3
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 1...g4
- 2.Rf4#
- 1...Kxe4
- Tries
- 1.Kxd7?
- 1...Sa1
- 2.Re3#
- 1...Se1
- 2.Re3#
- 1...Sa3
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 1...g4
- 2.Rf4#
- 1...Kxe4!
- 1...Sa1
- 1.Sb3?
- threat
- 2.Sd2#
- 1...Se3
- 2.Rxe3#
- 1...Kxe4!
- threat
- 1.Re2?
- 1...Se3
- 2.Rxe3#
- 1...Sa1
- 2.Re3#
- 1...Se1
- 2.Re3#
- 1...Sa3
- 2.Re3#
- 1...Sb4
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 1...g4!
- 1...Se3
- 1.Re5?
- 1...Sa1
- 2.Re3#
- 1...Se1
- 2.Re3#
- 1...Sa3
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 1...g4!
- 1...Sa1
- 1.Re7?
- 1...Sa1
- 2.Re3#
- 1...Se1
- 2.Re3#
- 1...Sa3
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 1...g4!
- 1...Sa1
- 1.Re8?
- 1...Sa1
- 2.Re3#
- 1...Se1
- 2.Re3#
- 1...Sa3
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Sb4
- 2.Re3#
- 1...Sd4
- 2.Re3#
- 1...g4!
- 1...Sa1
- 1.Qxh1?
- threat
- 2.Se1#
- 2.Sh4#
- 1...Se1
- 2.Sxe1#
- 2.Sh4#
- 1...Kxe4!
- threat
- 1.Qh5+?
- 1...Kxg2
- 2.Qxh1#
- 1...Kxe4
- 2.Qg4#
- 1...g4!
- 1...Kxg2
- 1.Kxd7?
- Keys
- 1.Qh7!
- 1...Kxg2
- 2.Qxh1#
- 1...g4
- 2.Sh4#
- 1...Sa1
- 2.Se1#
- 1...Se1
- 2.Sxe1#
- 1...Sa3
- 2.Se1#
- 1...Se3
- 2.Se1#
- 1...Sb4
- 2.Se1#
- 1...Sd4
- 2.Se1#
- 1...Kxg2
- 1.Qh7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(d);N_SPINP(c),S_FLIGHT,XR(E)::QAR2(D)
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- P(f);N_GUARD::R1(E)
- Tries
- Try
- K(F);P-FLIGHT,XP(g)
- Vars
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- P(f);N_GUARD::R1(E)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(E)
- Try
- S(A);
- Threat
- S(A)
- Vars
- S(b);N_GUARD::R1(E),XS(b)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(E)
- Try
- R(E);
- Vars
- S(b);N_GUARD::R1(E),XS(b)
- S(b);N_GUARD::R1(E)
- Refutation
- P(f);
- Try
- R(E);
- Vars
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- Refutation
- P(f);
- Try
- R(E);
- Vars
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- Refutation
- P(f);
- Try
- R(E);
- Vars
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- Refutation
- P(f);
- Try
- Q(D);XS(a)
- Threat
- DUALS(2)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(E)
- Try
- Q(D);CHECK
- Vars
- K(d);N_SPINP(c),OGATEB,S_FLIGHT,XS(C)::QAB1(D),XS(a)
- K(d);N_SPINP(c),S_FLIGHT,XR(E)::QAR2(D)
- Refutation
- P(f);
- Try
- Actual
- Q(D);
- Vars
- K(d);N_SPINP(c),OGATEB,S_FLIGHT,XS(C)::QAB1(D),XS(a)
- P(f);N_GUARD::S(C)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
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).