MESON Chess Problem Database
Problem Display
PID: 110643 (6N1/3Np3/4r2p/3P1k1P/4pB2/4KnR1/3p3p/3B3Q w - - 0 1)
Zappas, Byron
To Mat, 1953
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Sxh6#
- 1...Ra6
- 2.Sxe7#
- 1...Rb6
- 2.Sxe7#
- 1...Rc6
- 2.Sxe7#
- 1...Rd6
- 2.Sxe7#
- 1...Rf6
- 2.Sxe7#
- 1...Rg6
- 2.Sxe7#
- 1...Se1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...Sd4
- 2.Bg4#
- 1...Sh4
- 2.Bg4#
- 1...Se5
- 2.Qxe4#
- 1...Sg5
- 2.Bg4#
- 1...Re5
- Tries
- 1.Bxh6?
- 1...Rxh6
- 2.Sxh6#
- 2.Sxe7#
- 1...Ra6
- 2.Sxe7#
- 1...Rb6
- 2.Sxe7#
- 1...Rc6
- 2.Sxe7#
- 1...Rd6
- 2.Sxe7#
- 1...Rf6
- 2.Sxe7#
- 1...Rg6
- 2.Sxe7#
- 1...Se1
- 2.Bg4#
- 2.Rg5#
- 1...Sg1
- 2.Bg4#
- 2.Rg5#
- 1...Sd4
- 2.Bg4#
- 2.Rg5#
- 1...Sh4
- 2.Bg4#
- 2.Rg5#
- 1...Se5
- 2.Rg5#
- 2.Qxe4#
- 1...Sg5
- 2.Bg4#
- 2.Rxg5#
- 1...Re5!
- 1...Rxh6
- 1.Rg2?
- 1...Re5
- 2.Sxh6#
- 1...Ra6
- 2.Sxe7#
- 1...Rb6
- 2.Sxe7#
- 1...Rc6
- 2.Sxe7#
- 1...Rd6
- 2.Sxe7#
- 1...Rf6
- 2.Sxe7#
- 1...Rg6
- 2.Sxe7#
- 1...Se1
- 2.Bg4#
- 1...Sg1
- 2.Bg4#
- 1...Sd4
- 2.Bg4#
- 1...Sh4
- 2.Bg4#
- 1...Sg5
- 2.Bg4#
- 1...Se5!
- 1...Re5
- 1.Qxf3?
- threat
- 2.Qg4#
- 1...Rg6
- 2.Sxe7#
- 2.Qxe4#
- 1...exf3+!
- threat
- 1.Bxh6?
- Keys
- 1.Be5!
- 1...Rxe5
- 2.Sxh6#
- 1...Sxe5
- 2.Qxe4#
- 1...Ra6
- 2.Sxe7#
- 1...Rb6
- 2.Sxe7#
- 1...Rc6
- 2.Sxe7#
- 1...Rd6
- 2.Sxe7#
- 1...Rf6
- 2.Sxe7#
- 1...Rg6
- 2.Sxe7#
- 1...Se1
- 2.Qxe4#
- 1...Sg1
- 2.Qxe4#
- 1...Sd4
- 2.Qxe4#
- 1...Sh4
- 2.Qxe4#
- 1...Sg5
- 2.Bg4#
- 1...Rxe5
- 1.Be5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::S(I),XP(g)
- R(f);N_GUARD::S(I),XP(h)
- S(c);OGATE::B(A)
- S(c);OGATE::QAB1(B),XP(d)
- Tries
- Try
- B(E);XP(g)
- Vars
- R(f);N_GUARD::S(I),XP(h)
- Refutation
- R(f);
- Try
- R(D);
- Vars
- R(f);N_GUARD::S(I),XP(g)
- R(f);N_GUARD::S(I),XP(h)
- S(c);OGATE::B(A)
- Refutation
- S(c);
- Try
- Q(B);XS(c)
- Threat
- QAB1(B)
- Refutation
- P(d);CHECK,XQ(B)
- Try
- Actual
- B(E);
- Vars
- R(f);N_GUARD,XB(E)::S(I),XP(g)
- S(c);OGATE,XB(E)::QAB1(B),XP(d)
- R(f);N_GUARD::S(I),XP(h)
- S(c);OGATE::QAB1(B),XP(d)
- S(c);OGATE,SBLOCK::B(A)
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).