MESON Chess Problem Database
Problem Display
PID: 149172 (8/8/2QN1p2/rRpnpR1r/3k2P1/b5Kp/3P1P2/1B6 w - - 0 1)
Agostini, Valerio
Best Problems, 2010
#2
9 + 9
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Qxc5#
- 1...Bb2
- 2.Qxc5#
- 1...Se3
- 2.Qe4#
- 2.fxe3#
- 1...Sb4
- 2.Qe4#
- 2.Qxc5#
- 1...Sf4
- 2.Qe4#
- 1...Sb6
- 2.Qe4#
- 1...Sc7
- 2.Qe4#
- 1...Se7
- 2.Qe4#
- 1...c4
- 2.Qxd5#
- 2.Qxc4#
- 1...e4
- 2.Qxd5#
- 1...Bc1
- Tries
- 1.Rb4+?
- 1...Sxb4
- 2.Qe4#
- 1...cxb4
- 2.Qc4#
- 1...c4
- 2.Rxc4#
- 2.Qxc4#
- 1...Bxb4!
- 1...Sxb4
- 1.Rf3?
- threat
- 2.Rd3#
- 1...Se3
- 2.Qe4#
- 2.fxe3#
- 1...Sb4
- 2.Qe4#
- 2.Qxc5#
- 1...Sf4
- 2.Qe4#
- 1...c4
- 2.Qxd5#
- 2.Qxc4#
- 1...e4!
- threat
- 1.Rf4+?
- 1...Sxf4
- 2.Qe4#
- 1...e4
- 2.Rxe4#
- 1...exf4+!
- 1...Sxf4
- 1.Rb4+?
- Keys
- 1.Rb3!
- threat
- 2.Rd3#
- 1...Sc3
- 2.dxc3#
- 1...Sb4
- 2.Qe4#
- 1...Sf4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...e4
- 2.Qxd5#
- threat
- 1.Rb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- B(a);N_GUARD::QAB1(H),XP(e)
- S(f);OGATE::QAR1(H)
- P(g);::QAR1(H),XS(f)
- Tries
- Try
- R(F);CHECK
- Vars
- S(f);OGATE,XR(F)::QAR1(H)
- P(e);OGATE,XR(F)::QAR1(H)
- Refutation
- B(a);XR(F)
- Try
- R(G);
- Threat
- R1(G)
- Vars
- S(f);OGATE::QAR1(H)
- Refutation
- P(g);
- Try
- R(G);CHECK
- Vars
- S(f);OGATE,XR(G)::QAR1(H)
- P(g);P_SPINP(g)::R1(G),XP(g)
- Refutation
- P(g);CHECK,XR(G)
- Try
- Actual
- R(F);
- Threat
- R1(F)
- Vars
- S(f);OGATE::P(B),XS(f)
- S(f);OGATE::QAR1(H)
- P(e);OGATE::QAR1(H),XP(e)
- P(g);::QAR1(H),XS(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).