MESON Chess Problem Database
Problem Display
PID: 58726 (RNR5/1n6/8/1p6/PkP5/pN6/3K4/3Q4 w - - 0 1)
Savournin, Jacques
Chess Life, 1960
#2
8 + 4
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...bxa4
- 2.Sa6#
- 1...bxc4
- 2.Sc6#
- 1...bxa4
- Tries
- 1.Sa1?
- threat
- 2.Qb3#
- 2.Qb1#
- 1...bxa4
- 2.Rxa4#
- 2.Qxa4#
- 2.Qb1#
- 1...bxc4
- 2.Qb1#
- 1...a2
- 2.Qb3#
- 1...Sa5
- 2.Sa6#
- 1...Sc5!
- threat
- 1.Sc1?
- threat
- 2.Sa2#
- 2.Sd3#
- 2.Qb3#
- 1...bxa4
- 2.Sa2#
- 2.Sd3#
- 2.Rxa4#
- 2.Qxa4#
- 1...bxc4
- 2.Sa2#
- 1...a2
- 2.Qb3#
- 1...Sa5
- 2.Sa2#
- 2.Sd3#
- 2.Sa6#
- 1...Sc5!
- threat
- 1.Sd4?
- threat
- 2.Qb3#
- 2.Qb1#
- 1...bxa4
- 2.Rxa4#
- 2.Qxa4#
- 2.Qb1#
- 1...bxc4
- 2.Qb1#
- 1...a2
- 2.Qb3#
- 1...Sa5
- 2.Sa6#
- 1...Sc5!
- threat
- 1.Sa1?
- Keys
- 1.Sa5!
- threat
- 2.Qb3#
- 1...Sxa5
- 2.Sa6#
- 1...bxa4
- 2.Qb1#
- 1...bxc4
- 2.Rxc4#
- 1...Sc5
- 2.Sbc6#
- threat
- 1.Sa5!
This anticipates 108746(1983)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(c);SBLOCK,XP(D)::S(G)
- P(c);SBLOCK,XP(E)::S(G)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- P(c);XP(E)::QAR(A)
- P(a);::QAR1(A)
- S(d);SBLOCK::S(G)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- P(c);XP(E)::S(C)
- P(a);::QAR1(A)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- P(c);XP(E)::QAR(A)
- P(a);::QAR1(A)
- S(d);SBLOCK::S(G)
- Refutation
- S(d);
- Try
- Actual
- S(C);
- Threat
- QAR1(A)
- Vars
- S(d);SBLOCK,XS(C)::S(G)
- P(c);SBLOCK,XP(D)::QAR(A)
- P(c);OGATE,XP(E)::R1(H),XP(c)
- S(d);SBLOCK::S(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).