MESON Chess Problem Database
Problem Display
PID: 161909 (KQ6/8/8/3p2p1/3k4/2R1n2r/1P3N2/4N3 w - - 0 1)
Jefimovas, J
Sachmatija, 2009
#2
6 + 5
| 5454 | Near Snap | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sf3#
- 1...Rh2
- 2.Sf3#
- 1...Rf3
- 2.Sxf3#
- 1...Rg3
- 2.Qh8#
- 1...Rh4
- 2.Sf3#
- 1...Rh5
- 2.Sf3#
- 1...Rh6
- 2.Sf3#
- 1...Rh7
- 2.Sf3#
- 1...Rh8
- 2.Sf3#
- 2.Qxh8#
- 1...Sd1
- 2.Sc2#
- 1...Sf1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sg2
- 2.Sc2#
- 1...Sg4
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...g4
- 2.Qf4#
- 1...Rh1
- Tries
- 1.Sed3?
- threat
- 2.Qe5#
- 2.Qa7#
- 2.Qb6#
- 1...Sg4
- 2.Qa7#
- 2.Qb6#
- 1...Rh6
- 2.Qe5#
- 1...Rh7
- 2.Qe5#
- 2.Qb6#
- 1...Rh8
- 2.Qxh8#
- 1...Sc4!
- threat
- 1.Rc8?
- 1...Sd1
- 2.Sc2#
- 1...Sf1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sg2
- 2.Sc2#
- 1...Sc4
- 2.Sc2#
- 1...Sg4
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Rh1
- 2.Sf3#
- 1...Rh2
- 2.Sf3#
- 1...Rf3
- 2.Sxf3#
- 1...Rh4
- 2.Sf3#
- 1...Rh5
- 2.Sf3#
- 1...Rh6
- 2.Sf3#
- 1...Rh7
- 2.Sf3#
- 1...Rh8
- 2.Sf3#
- 1...g4
- 2.Qf4#
- 1...Rg3!
- 1...Sd1
- 1.Qh2?
- 1...Rh8+
- 2.Qxh8#
- 1...Rxh2
- 2.Sf3#
- 1...Rg3
- 2.Qh8#
- 1...Rf3
- 2.Sxf3#
- 1...Rh4
- 2.Sf3#
- 1...Rh5
- 2.Sf3#
- 1...Rh6
- 2.Sf3#
- 1...Rh7
- 2.Sf3#
- 1...Sd1
- 2.Sc2#
- 1...Sf1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sg2
- 2.Sc2#
- 1...Sg4
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...g4
- 2.Qf4#
- 1...Sc4!
- 1...Rh8+
- 1.Qd6?
- threat
- 2.Qf6#
- 1...Rf3
- 2.Sxf3#
- 1...Rh6
- 2.Sf3#
- 1...Sc4
- 2.Sc2#
- 1...Sg4
- 2.Sc2#
- 1...Rh8+!
- threat
- 1.Qc7?
- threat
- 2.Rd3#
- 2.Qg7#
- 1...Rf3
- 2.Sxf3#
- 2.Rd3#
- 1...Rh6
- 2.Sf3#
- 2.Rd3#
- 1...Rh7
- 2.Sf3#
- 2.Rd3#
- 1...Sd1
- 2.Sc2#
- 2.Qg7#
- 1...Sf1
- 2.Sc2#
- 2.Qg7#
- 1...Sc2
- 2.Sxc2#
- 2.Qg7#
- 1...Sg2
- 2.Sc2#
- 2.Qg7#
- 1...Sc4
- 2.Sc2#
- 1...Sg4
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Rh8+!
- threat
- 1.Sed3?
- Keys
- 1.Rc6!
- 1...Sd1
- 2.Sc2#
- 1...Sf1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sg2
- 2.Sc2#
- 1...Sc4
- 2.Sc2#
- 1...Sg4
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Rh1
- 2.Sf3#
- 1...Rh2
- 2.Sf3#
- 1...Rf3
- 2.Sxf3#
- 1...Rg3
- 2.Qh8#
- 1...Rh4
- 2.Sf3#
- 1...Rh5
- 2.Sf3#
- 1...Rh6
- 2.Sf3#
- 1...Rh7
- 2.Sf3#
- 1...Rh8
- 2.Sf3#
- 2.Qxh8#
- 1...g4
- 2.Qf4#
- 1...Sd1
- 1.Rc6!
Anticipated by 4696(1886)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::QAB(F)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(e);N_GUARD::QAR2(F)
- Tries
- Try
- S(A);
- Threat
- DUALS(3)
- Vars
- R(b);::QAB1(F)
- R(b);N_GUARD,P_PINQ(F)::QAB(F),XR(b)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::S(A),XR(b)
- P(e);N_GUARD::QAR2(F)
- Refutation
- R(b);
- Try
- Q(F);
- Vars
- R(b);CHECK,OGATE::QAB(F),XR(b)
- R(b);N_GUARD,XQ(F)::S(A)
- R(b);OGATE::QAB(F)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(e);N_GUARD::QAR2(F)
- Refutation
- S(a);
- Try
- Q(F);P_PINP(d)
- Threat
- QAB(F)
- Vars
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- Refutation
- R(b);CHECK
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::S(A)
- Refutation
- R(b);CHECK
- Try
- Actual
- R(D);
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::QAB(F)
- P(e);N_GUARD::QAR2(F)
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).