MESON Chess Problem Database
Problem Display
PID: 55011 (8/8/1KR1pP2/3kNn1B/2pPp3/2pn4/2N5/8 w - - 0 1)
Zappas, Byron
Problem (Zagreb), 1962
#2
7 + 7
| 3747 | FIDE Album (1962-1964) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...e3
- 2.Bf3#
- 1...e3
- Tries
- 1.Kc7?
- 1...Sxe5
- 2.Rc5#
- 1...e3
- 2.Bf3#
- 1...Sc1
- 2.Rc5#
- 1...Se1
- 2.Rc5#
- 1...Sb2
- 2.Rc5#
- 1...Sf2
- 2.Rc5#
- 1...Sb4
- 2.Rc5#
- 1...Sf4
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Se3
- 2.Rd6#
- 1...Sg3
- 2.Rd6#
- 1...Sh4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...Sxd4!
- 1...Sxe5
- 1.Sxd3?
- threat
- 2.Sdb4#
- 2.Sf4#
- 1...Sxd4
- 2.Se3#
- 2.Scb4#
- 1...exd3
- 2.Bf3#
- 1...e3
- 2.Bf3#
- 1...e5
- 2.Sdb4#
- 2.Bf7#
- 1...cxd3!
- threat
- 1.Sf3?
- 1...Sxd4
- 2.Se3#
- 1...exf3
- 2.Bxf3#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf4
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Se3
- 2.Sxe3#
- 1...Sg3
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...e5
- 2.Bf7#
- 1...e3!
- 1...Sxd4
- 1.Sg6?
- 1...Sxd4
- 2.Se3#
- 1...e3
- 2.Bf3#
- 1...Sc1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sb2
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sb4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sc5
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Se3
- 2.Se7#
- 1...Sg3
- 2.Se7#
- 1...Sh4
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sh6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sg7
- 2.Se7#
- 1...e5!
- 1...Sxd4
- 1.Sf7?
- 1...Sxd4
- 2.Se3#
- 2.Rd6#
- 1...e3
- 2.Bf3#
- 1...Sc1
- 2.Rc5#
- 1...Se1
- 2.Rc5#
- 1...Sb2
- 2.Rc5#
- 1...Sf2
- 2.Rc5#
- 1...Sb4
- 2.Rc5#
- 1...Sf4
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Se5
- 2.Rc5#
- 1...Se3
- 2.Rd6#
- 1...Sg3
- 2.Rd6#
- 1...Sh4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...e5!
- 1...Sxd4
- 1.Kc7?
- Keys
- 1.Sxc4!
- 1...Sxd4
- 2.S2e3#
- 1...Sc5
- 2.Rxc5#
- 1...e3
- 2.Bf3#
- 1...Sc1
- 2.Rc5#
- 1...Se1
- 2.Rc5#
- 1...Sb2
- 2.Rc5#
- 1...Sf2
- 2.Rc5#
- 1...Sb4
- 2.Rc5#
- 1...Sf4
- 2.Rc5#
- 1...Se5
- 2.Rc5#
- 1...Se3
- 2.S4xe3#
- 1...Sg3
- 2.S4e3#
- 1...Sh4
- 2.S4e3#
- 1...Sd6
- 2.S4e3#
- 1...Sh6
- 2.S4e3#
- 1...Se7
- 2.S4e3#
- 1...Sg7
- 2.S4e3#
- 1...e5
- 2.Bf7#
- 1...Sxd4
- 1.Sxc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 17
- REMOVED MATES = 0
- Sets
- P(d);OGATEB::B(D)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(b);N_GUARD,XS(C)::R1(F)
- P(d);OGATEB::B(D)
- S(b);N_GUARD::R1(F)
- S(b);N_GUARD::R1(F),XS(b)
- S(f);N_GUARD::R1(F)
- S(f);N_GUARD::R1(F),XS(f)
- Refutation
- S(f);XP(B)
- Try
- S(C);XS(b)
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XS(C)::B(D)
- P(d);OGATEB::B(D)
- Refutation
- P(c);XS(C)
- Try
- S(C);
- Vars
- S(f);N_GUARD,XP(B)::S(A)
- P(d);OGATE,XS(C)::B(D),XP(d)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(f);N_GUARD::S(A),XS(f)
- S(f);N_GUARD::S(A)
- P(g);OGATEB::B(D)
- Refutation
- P(d);
- Try
- S(C);
- Vars
- S(f);N_GUARD,SBLOCK,XP(B)::S(A)
- P(d);OGATEB::B(D)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Refutation
- P(g);
- Try
- S(C);
- Vars
- P(d);OGATEB::B(D)
- S(b);N_GUARD::R1(F)
- S(b);N_GUARD::R1(F),XS(b)
- S(f);N_GUARD::R1(F)
- S(f);N_GUARD::R1(F),XS(f)
- Refutation
- P(g);
- Try
- Actual
- S(C);XP(c)
- Vars
- S(f);N_GUARD,SBLOCK,XP(B)::S(A)
- S(b);N_GUARD::R1(F),XS(b)
- P(d);OGATEB::B(D)
- S(b);N_GUARD::R1(F)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- P(g);OGATEB::B(D)
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).