MESON Chess Problem Database
Problem Display
PID: 142565 (1B5K/6R1/4N3/p7/r5pk/6NP/1n4Q1/bb1n1B2 w - - 0 1)
Loustau, Jean-Marc
3rd HM., Phenix, 1988
#2
8 + 8
| 702 | Phenix | 1990 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Rxg4#
- 1...Ra3
- 2.Rxg4#
- 1...Re4
- 2.Rh7#
- 1...Ba2
- 2.Rh7#
- 1...Be4
- 2.Rxg4#
- 1...Bh7
- 2.Rxh7#
- 1...gxh3
- 2.Qxh3#
- 1...Ra2
- Tries
- 1.Se4?
- threat
- 2.Rh7#
- 2.Qxg4#
- 1...Rxe4
- 2.Rh7#
- 1...Bxe4
- 2.Qxg4#
- 1...gxh3
- 2.Rh7#
- 2.Qxh3#
- 2.Qg4#
- 2.Qg5#
- 1...Sf2
- 2.Rh7#
- 1...Se3
- 2.Rh7#
- 1...Sd3
- 2.Qxg4#
- 1...Sc4
- 2.Qxg4#
- 1...g3
- 2.Rh7#
- 1...Kh5!
- threat
- 1.Sf5+?
- 1...Kh5
- 2.Rg5#
- 1...Bxf5!
- 1...Kh5
- 1.Bf4?
- threat
- 2.Bg5#
- 2.Rxg4#
- 1...gxh3
- 2.Qxh3#
- 1...Bf5
- 2.Bg5#
- 1...Bg6
- 2.Bg5#
- 1...Sf2
- 2.Bg5#
- 1...Se3
- 2.Bg5#
- 1...Sd3
- 2.Bg5#
- 1...Sc4
- 2.Bg5#
- 1...Rxf4!
- threat
- 1.Be5?
- threat
- 2.Bf6#
- 1...Sd3
- 2.Rh7#
- 1...Sc4
- 2.Rxg4#
- 1...Rf4!
- threat
- 1.Qd5?
- threat
- 2.Qg5#
- 2.Qh5#
- 2.Qd8#
- 1...Rd4
- 2.Qg5#
- 2.Qh5#
- 1...Bf5
- 2.Qd8#
- 1...Bg6
- 2.Qg5#
- 2.Qd8#
- 1...Sd3
- 2.Qg5#
- 2.Qh5#
- 1...Sc4
- 2.Qg5#
- 2.Qh5#
- 1...Rf4!
- threat
- 1.Qd2?
- threat
- 2.Qg5#
- 2.Qh6#
- 2.Qd8#
- 1...Rd4
- 2.Qg5#
- 2.Qh6#
- 1...Bd3
- 2.Qg5#
- 2.Qh6#
- 1...Bg6
- 2.Qg5#
- 2.Qd8#
- 1...Se3
- 2.Qd8#
- 1...Sd3
- 2.Qg5#
- 2.Qh6#
- 1...Sc4
- 2.Qg5#
- 2.Qh6#
- 1...Rf4!
- threat
- 1.hxg4?
- threat
- 2.Qh1#
- 2.Qh3#
- 2.Qh2#
- 1...Bg6
- 2.Qh3#
- 1...Rf4
- 2.Qh3#
- 2.Qh2#
- 1...Be4
- 2.Qh3#
- 2.Qh2#
- 1...Sf2!
- threat
- 1.Se4?
- Keys
- 1.Qe4!
- threat
- 2.Rxg4#
- 2.Rh7#
- 1...Rxe4
- 2.Rh7#
- 1...Bxe4
- 2.Rxg4#
- 1...Sf2
- 2.Rh7#
- 1...Se3
- 2.Rh7#
- 1...Sd3
- 2.Qh7#
- 1...Sc4
- 2.Qxg4#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(e);N_GUARD::R1(F),XP(f)
- R(e);S_CUTB(b)::R(F)
- B(b);N_GUARD::R(F)
- B(b);S_CUTR(e)::R1(F),XP(f)
- B(b);N_GUARD::R(F),XB(b)
- P(f);OGATE,XP(D)::QAR1(B),XP(f)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(e);XS(C)::R(F)
- B(b);XS(C)::QAR1(B),XP(f)
- S(c);::R(F)
- S(d);P_PINR(F)::QAR1(B),XP(f)
- P(f);::R(F)
- Refutation
- K(g);P-FLIGHT
- Try
- S(C);CHECK
- Vars
- K(g);P-FLIGHT::R1(F)
- Refutation
- B(b);XS(C)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- P(f);OGATE,XP(D)::QAR1(B),XP(f)
- B(b);::B(G)
- S(c);::B(G)
- S(d);P_PINR(F)::B(G)
- Refutation
- R(e);XB(G)
- Try
- B(G);
- Threat
- B(G)
- Vars
- S(d);S_CUTB(b)::R(F)
- S(d);S_CUTR(e)::R1(F),XP(f)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(b);::QAB(B)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- S(c);::QAB(B)
- Refutation
- R(e);
- Try
- P(D);XP(f)
- Threat
- DUALS(3)
- Vars
- B(b);::QAR1(B)
- Refutation
- S(c);
- Try
- Actual
- Q(B);P_PINP(f)
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINP(f),XQ(B)::R(F)
- B(b);N_SPINP(f),XQ(B)::R1(F),XP(f)
- S(c);::R(F)
- S(d);P_PINR(F),S_CUTB(b)::QAR(B)
- S(d);P_PINR(F),S_CUTR(e)::QAR1(B),XP(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).