MESON Chess Problem Database
Problem Display
PID: 80723 (1b6/r6n/1q1p1Q1p/1p3Pn1/1p5R/p3kNB1/1N1p4/3K1R2 w - - 0 1)
Bouchez, Laurent
Makaronets, Leonid
1st HM., Liberte-Dimanche, 1998
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qxd4#
- 1...Qa5
- 2.Qd4#
- 1...Qc7
- 2.Qd4#
- 1...Qd8
- 2.Qd4#
- 1...Qa6
- 2.Qd4#
- 1...Qc6
- 2.Qd4#
- 1...Qb7
- 2.Qd4#
- 1...Sxf3
- 2.Bf2#
- 1...Sh3
- 2.Qe6#
- 1...Se4
- 2.Bf4#
- 1...Se6
- 2.Qxe6#
- 1...b3
- 2.Qc3#
- 1...Qd4
- Tries
- 1.Sg1?
- threat
- 2.Bf2#
- 1...Sh3
- 2.Rf3#
- 2.Qe6#
- 1...Se4
- 2.Bf4#
- 2.Rf3#
- 1...axb2!
- threat
- 1.Sxd2?
- threat
- 2.Bf2#
- 2.Bf4#
- 2.Re1#
- 1...Sxf6
- 2.Bf2#
- 2.Re1#
- 1...Qd4
- 2.Bf2#
- 2.Re1#
- 2.Qxd4#
- 1...Sf3
- 2.Bf2#
- 2.Bf4#
- 2.Rxf3#
- 2.Re4#
- 1...Sh3
- 2.Re1#
- 2.Rf3#
- 2.Re4#
- 2.Qe6#
- 1...Se4
- 2.Bf4#
- 2.Re1#
- 2.Rf3#
- 2.Rxe4#
- 1...Se6
- 2.Bf2#
- 2.Re1#
- 2.Rf3#
- 2.Re4#
- 2.Qxe6#
- 1...d5
- 2.Bf2#
- 2.Re1#
- 1...axb2!
- threat
- 1.Sh2?
- threat
- 2.Bf2#
- 1...Sh3
- 2.Rf3#
- 2.Qe6#
- 1...Se4
- 2.Sg4#
- 2.Bf4#
- 2.Rf3#
- 1...axb2!
- threat
- 1.Sd4?
- threat
- 2.Sc2#
- 2.Bf2#
- 1...Qxd4
- 2.Qxd4#
- 1...Qc5
- 2.Bf2#
- 1...Qc7
- 2.Bf2#
- 1...Qc6
- 2.Bf2#
- 1...Rc7
- 2.Bf2#
- 1...Sh3
- 2.Sc2#
- 2.Rf3#
- 2.Qe6#
- 1...Se4
- 2.Sc2#
- 2.Bf4#
- 2.Rf3#
- 1...b3
- 2.Bf2#
- 1...axb2!
- threat
- 1.Sxg5?
- threat
- 2.Bf2#
- 2.Bf4#
- 2.Rf3#
- 2.Re4#
- 2.Qe6#
- 1...Sxf6
- 2.Bf2#
- 2.Rf3#
- 1...axb2
- 2.Rf3#
- 1...hxg5
- 2.Qe6#
- 1...Qd4
- 2.Bf2#
- 2.Rf3#
- 2.Qxd4#
- 1...Qc5
- 2.Bf2#
- 2.Bf4#
- 2.Rf3#
- 2.Re4#
- 1...Qc6
- 2.Bf2#
- 2.Bf4#
- 2.Qd4#
- 1...Qb7
- 2.Bf2#
- 2.Bf4#
- 2.Qd4#
- 1...Re7
- 2.Bf2#
- 2.Bf4#
- 2.Rf3#
- 2.Qxe7#
- 1...Sf8
- 2.Bf2#
- 2.Bf4#
- 2.Rf3#
- 2.Re4#
- 1...d5
- 2.Bf2#
- 2.Rf3#
- 1...Sxg5!
- threat
- 1.Rxb4?
- threat
- 2.Bf4#
- 2.Qc3#
- 1...Sxf6
- 2.Bf4#
- 1...axb2
- 2.Qc3#
- 1...Qd4
- 2.Qxd4#
- 1...Qc5
- 2.Bf4#
- 1...Qc7
- 2.Bf4#
- 2.Qd4#
- 1...Qc6
- 2.Bf4#
- 2.Qd4#
- 1...Rc7
- 2.Bf4#
- 1...Sh3
- 2.Qc3#
- 2.Qe6#
- 1...Se6
- 2.Qc3#
- 2.Qxe6#
- 1...d5
- 2.Qc3#
- 1...Se4!
- threat
- 1.Rd4?
- threat
- 2.Bf4#
- 1...Qxd4
- 2.Qxd4#
- 1...Sh3
- 2.Qe6#
- 1...Se4
- 2.Rd3#
- 1...Se6
- 2.Qxe6#
- 1...d5!
- threat
- 1.Qe5+?
- 1...Se4
- 2.Bf4#
- 2.Rxe4#
- 2.Qf4#
- 2.Qxe4#
- 1...dxe5!
- 1...Se4
- 1.Qe7+?
- 1...Se4
- 2.Bf4#
- 2.Rxe4#
- 2.Qxe4#
- 1...Se6
- 2.Qxe6#
- 1...Rxe7!
- 1...Se4
- 1.Qe6+?
- 1...Se4
- 2.Bf4#
- 2.Rxe4#
- 2.Qxe4#
- 1...Sxe6!
- 1...Se4
- 1.Sg1?
- Keys
- 1.Se5!
- threat
- 2.Bf2#
- 1...dxe5
- 2.Qxb6#
- 1...Se4
- 2.Sg4#
- 1...Sh3
- 2.Rf3#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(g);N_GUARD::QAB1(H),XQ(g)
- Q(g);N_GUARD::QAB1(H)
- S(f);SBLOCK,XS(D)::B(E)
- S(f);N_GUARD::QAR(H)
- S(f);SBLOCK::B(E)
- S(f);N_GUARD::QAR(H),XS(f)
- P(d);N_GUARD::QAR2(H)
- Tries
- Try
- S(D);
- Threat
- B(E)
- Refutation
- P(b);XS(C)
- Try
- S(D);XP(a)
- Threat
- DUALS(3)
- Refutation
- P(b);XS(C)
- Try
- S(D);
- Threat
- B(E)
- Refutation
- P(b);XS(C)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(g);OGATE,XS(D)::QAB1(H),XQ(g)
- Q(g);::B(E)
- R(j);::B(E)
- P(d);::B(E)
- Refutation
- P(b);XS(C)
- Try
- S(D);XS(f)
- Threat
- DUALS(5)
- Vars
- P(b);XS(C)::R1(B)
- P(i);XS(D)::QAR(H)
- Refutation
- S(k);XS(D)
- Try
- R(F);XP(d)
- Threat
- DUALS(2)
- Vars
- S(k);XQ(H)::B(E)
- P(b);XS(C)::QAR2(H)
- Q(g);N_GUARD::QAB1(H),XQ(g)
- Q(g);::B(E)
- R(j);::B(E)
- P(h);::QAR2(H)
- Refutation
- S(f);
- Try
- R(F);
- Threat
- B(E)
- Vars
- Q(g);OGATE,XR(F)::QAB1(H),XQ(g)
- S(f);N_GUARD::QAR(H)
- S(f);SBLOCK::R1(F)
- S(f);N_GUARD::QAR(H),XS(f)
- Refutation
- P(h);
- Try
- Q(H);CHECK
- Refutation
- P(h);XQ(H)
- Try
- Q(H);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAR(H),XS(f)
- Refutation
- R(j);XQ(H)
- Try
- Q(H);CHECK
- Refutation
- S(f);XQ(H)
- Try
- Actual
- S(D);
- Threat
- B(E)
- Vars
- P(h);OGATE,XS(D)::QAB(H),XQ(g)
- S(f);SBLOCK::S(D)
- S(f);N_GUARD::R1(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).