MESON Chess Problem Database
Problem Display
PID: 7393 (bb3Q2/8/7R/r3p3/3Pp3/3Pkp2/4N1P1/1B2K3 w - - 0 1)
Petite, Efren
3rd HM., StrateGems, 1999
#2
8 + 7
| 145 | StrateGems | 2000 |
SOLUTION
- SOUND
- Sets
- 1...fxe2
- 2.Qf2#
- 1...fxg2
- 2.Rh3#
- 2.Qf2#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- Tries
- 1.Rc6?
- threat
- 2.Qh6#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- 2.Qf2#
- 1...fxg2
- 2.Qf2#
- 1...exd3
- 2.Qxf3#
- 1...exd4!
- threat
- 1.Rd6?
- threat
- 2.Qh6#
- 1...f2+
- 2.Qxf2#
- 1...fxg2
- 2.Qf2#
- 1...exd4
- 2.Qf4#
- 1...exd3!
- threat
- 1.Qf5?
- threat
- 2.Qg5#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- 2.Qf2#
- 1...fxg2
- 2.Rh3#
- 2.Qh3#
- 2.Qf2#
- 1...exd3
- 2.Qxd3#
- 1...exd4!
- threat
- 1.Qf6?
- threat
- 2.Qg5#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- 2.Qf2#
- 1...fxg2
- 2.Rh3#
- 2.Qf2#
- 1...exd4
- 2.Qxd4#
- 1...exd3!
- threat
- 1.dxe4?
- threat
- 2.Qxf3#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- 2.Qf2#
- 1...fxg2
- 2.Rh3#
- 2.Qf2#
- 1...Bxe4!
- threat
- 1.dxe5?
- threat
- 2.Qf4#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- 2.Qf2#
- 1...Bxe5!
- threat
- 1.Rc6?
- Keys
- 1.Re6!
- threat
- 2.Qh6#
- 1...f2+
- 2.Qxf2#
- 1...fxe2
- 2.Qf2#
- 1...fxg2
- 2.Qf2#
- 1...exd3
- 2.Qf4#
- 1...exd4
- 2.Qxf3#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(b);OGATE,XS(C)::QAB1(H)
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- Tries
- Try
- R(G);
- Threat
- QAB(H)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XS(C)::QAB1(H)
- P(b);OGATE,XP(D)::QAB1(H)
- P(c);N_GUARD,XP(E)::QAR1(H),XP(b)
- Refutation
- P(e);XP(F)
- Try
- R(G);
- Threat
- QAB(H)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XP(D)::QAB1(H)
- P(e);N_GUARD,XP(F)::QAB1(H)
- Refutation
- P(c);XP(E)
- Try
- Q(H);
- Threat
- QAB(H)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XS(C)::QAB1(H)
- P(c);OGATE,XP(E)::QAR1(H),XP(c)
- Refutation
- P(e);XP(F)
- Try
- Q(H);
- Threat
- QAB(H)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XS(C)::QAB1(H)
- P(e);OGATE,XP(F)::QAB1(H),XP(e)
- Refutation
- P(c);XP(E)
- Try
- P(E);XP(c)
- Threat
- QAR1(H),XP(b)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XS(C)::QAB1(H)
- Refutation
- B(f);XP(E)
- Try
- P(F);XP(e)
- Threat
- QAB1(H)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XS(C)::QAB1(H)
- Refutation
- B(g);XP(F)
- Try
- Actual
- R(G);
- Threat
- QAB(H)
- Vars
- P(b);CHECK,OGATE::QAB1(H),XP(b)
- P(b);OGATE,XS(C)::QAB1(H)
- P(b);OGATE,XP(D)::QAB1(H)
- P(c);P_SPINP(e),XP(E)::QAB1(H)
- P(e);P_SPINP(c),XP(F)::QAR1(H),XP(b)
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).