MESON Chess Problem Database
Problem Display
PID: 45731 (5Q2/2pKN3/r1p1p2r/2kNB1R1/1Rp4p/5b2/4pq2/8 w - - 0 1)
Barnes, Barry Peter
3rd HM., StrateGems, 2002
#2
7 + 11
| 145 | StrateGems | 2004 |
| 56 | The Problemist | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Qxf2#
- 1...Bg2
- 2.Qxf2#
- 1...Be4
- 2.Qxf2#
- 1...Bg4
- 2.Qxf2#
- 1...Bxd5
- 2.Sf5#
- 1...Bh5
- 2.Qxf2#
- 1...cxd5
- 2.Sc6#
- 1...exd5
- 2.Sg6#
- 1...Bh1
- Tries
- 1.Sxc7?
- threat
- 2.Sxa6#
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Qd4+
- 2.Sed5#
- 2.Bd6#
- 1...Rf6
- 2.Sxa6#
- 1...Ra1
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Ra2
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Ra3
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Ra4
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Ra5
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Rb6
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Ra7
- 2.Sd5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Ra8
- 2.Sc8#
- 1...Rg6
- 2.Sxa6#
- 2.Sed5#
- 2.Sf5#
- 2.Sxc6#
- 2.Sxg6#
- 2.Sc8#
- 2.Sg8#
- 1...Rh7
- 2.Sxa6#
- 1...Rh8
- 2.Sxa6#
- 2.Sg8#
- 1...Bh1
- 2.Sxa6#
- 2.Sf5#
- 1...Bg2
- 2.Sxa6#
- 2.Sf5#
- 1...Be4
- 2.Sxa6#
- 2.Sf5#
- 1...Bg4
- 2.Sxa6#
- 2.Sf5#
- 1...Bd5
- 2.Sxa6#
- 2.Sf5#
- 1...Bh5
- 2.Sxa6#
- 2.Sf5#
- 1...Kxb4!
- threat
- 1.Bd4+?
- 1...Qxd4
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 2.Sg8#
- 1...Kxd4!
- 1...Qxd4
- 1.Sxc7?
- Keys
- 1.Rg4!
- threat
- 2.Rgxc4#
- 1...Bxg4
- 2.Qxf2#
- 1...Bxd5
- 2.Sf5#
- 1...cxd5
- 2.Sc6#
- 1...exd5
- 2.Sg6#
- 1...Qd4
- 2.Bxd4#
- 1...Be4
- 2.Qxf2#
- 1...c3
- 2.Rgc4#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- B(c);OGATE::QAB(G),XQ(b)
- B(c);SBLOCK,XS(B)::QAB(G)+S(F)
- P(h);SBLOCK,XS(B)::QAB(G)+S(F)
- P(i);SBLOCK,XS(B)::QAB(G)+S(F)
- Tries
- Try
- S(B);XP(k)
- Threat
- DUALS(7)
- Vars
- R(j);::S(B),XR(g)
- R(g);::QAB(G)+S(F)
- R(j);P_PINS(F)::S(B),XR(g)
- Refutation
- K(f);S_FLIGHT,XR(A)
- Try
- B(C);CHECK
- Refutation
- K(f);P_SPINP(d),S_FLIGHT,XB(C)
- Try
- Actual
- R(D);
- Threat
- R1(D),XP(d)
- Vars
- B(c);OGATE,XR(D)::QAB(G),XQ(b)
- B(c);SBLOCK,XS(B)::QAB(G)+S(F)
- P(h);SBLOCK,XS(B)::QAB(G)+S(F)
- P(i);SBLOCK,XS(B)::QAB(G)+S(F)
- Q(b);N_GUARD,P_PINS(B)::B(C),XQ(b)
- B(c);OGATE::QAB(G),XQ(b)
- P(d);::R1(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).