MESON Chess Problem Database
Problem Display
PID: 15970 (5K2/6QB/p2p4/6p1/r3N3/2pPk1B1/1b3R2/4N2b w - - 0 1)
Avner, Uri
Comm., Cheltenham TT, 2000
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qa7#
- 1...Ra2
- 2.Qa7#
- 1...Ra3
- 2.Qa7#
- 1...Rd4
- 2.Qxg5#
- 1...g4
- 2.Bf4#
- 1...Ra1
- Tries
- 1.Sd2?
- threat
- 2.Sc2#
- 2.Sf1#
- 1...cxd2
- 2.Sc2#
- 1...Re4
- 2.Sf1#
- 1...Bg2
- 2.Sc2#
- 2.Sxg2#
- 1...Be4
- 2.Sf1#
- 1...c2
- 2.Sxc2#
- 2.Sf1#
- 1...Rf4+!
- threat
- 1.Sxc3?
- threat
- 2.Sc2#
- 2.Sd1#
- 2.Re2#
- 1...Bxc3
- 2.Sc2#
- 1...Ra1
- 2.Sc2#
- 2.Re2#
- 2.Qa7#
- 1...Re4
- 2.Sd1#
- 2.Sd5#
- 2.Re2#
- 1...Bf3
- 2.Sc2#
- 1...Be4
- 2.Sd1#
- 2.Re2#
- 1...Rf4+!
- threat
- 1.Sc5?
- threat
- 2.Sc2#
- 1...c2
- 2.Sxc2#
- 1...Rf4+!
- threat
- 1.Sd2?
- Keys
- 1.Sf6!
- threat
- 2.Sc2#
- 1...Kd4
- 2.Qa7#
- 1...Re4
- 2.Sd5#
- 1...Be4
- 2.Sg4#
- 1...c2
- 2.Sxc2#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(e);N_GUARD::QAB(F)
- R(e);SBLOCK::QAB(F),XP(f)
- P(f);N_GUARD::B(D)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(c);XS(E)::S(A)
- R(e);::S(E)
- B(a);::S(E)
- Refutation
- R(e);CHECK
- Try
- S(E);XP(c)
- Threat
- DUALS(3)
- Vars
- B(b);XS(E)::S(A)
- B(a);::S(A)
- Refutation
- R(e);CHECK
- Try
- S(E);
- Threat
- S(A)
- Vars
- P(c);::S(A),XP(c)
- Refutation
- R(e);CHECK
- Try
- Actual
- S(E);
- Threat
- S(A)
- Vars
- K(d);S_FLIGHT::QAB(F)
- R(e);S_CUTB(a)::S(E)
- B(a);S_CUTR(e)::S(E)
- P(c);::S(A),XP(c)
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).