MESON Chess Problem Database
Problem Display
PID: 17948 (rB1q4/3PP1nn/R6b/R2N1k2/3PN1rp/1B4pP/8/1K2Q3 w - - 0 1)
Morice, Jean
Segal, Leon
3rd Place, Match: France - Romania, 1951-1953
#2
12 + 9
| 78 | Bulletin Ouvrier des Echecs | 1953 |
| 3389 | Belgian Solving Championship | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qxe7
- 2.Sxe7#
- 1...Qe8
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 1...Qf8
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 1...Qh8
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 1...Rxe4
- 2.Se3#
- 1...Rf4
- 2.Sc7#
- 1...Rg6
- 2.Sb6#
- 1...Sg5
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Sf8
- 2.Rf6#
- 1...Qxe7
- Tries
- 1.Sxg3+?
- 1...Rxg3
- 2.Qe5#
- 1...hxg3
- 2.Qe5#
- 1...Kg5!
- 1...Rxg3
- 1.exd8Q?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Se7#
- 1...Rxe4
- 2.Se3#
- 2.Se7#
- 1...Rxa6
- 2.Se7#
- 1...Be3
- 2.Sdc3#
- 1...Se6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 2.Rxf6#
- 2.Qxf6#
- 1...Rf4
- 2.Sdc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sc7#
- 2.Se7#
- 1...Bd2
- 2.Sdc3#
- 2.Sb4#
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Rxb8!
- threat
- 1.exd8S?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Se7#
- 1...Rxe4
- 2.Se3#
- 2.Se7#
- 1...Rxa6
- 2.Se7#
- 1...Be3
- 2.Sdc3#
- 1...Se6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 2.Rxf6#
- 1...Rf4
- 2.Sdc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sc7#
- 2.Se7#
- 1...Bd2
- 2.Sdc3#
- 2.Sb4#
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Rxb8!
- threat
- 1.exd8B?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Se7#
- 1...Rxe4
- 2.Se3#
- 2.Se7#
- 1...Rxa6
- 2.Se7#
- 1...Be3
- 2.Sdc3#
- 1...Se6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 2.Rxf6#
- 1...Rf4
- 2.Sdc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sc7#
- 2.Se7#
- 1...Bd2
- 2.Sdc3#
- 2.Sb4#
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Rxb8!
- threat
- 1.exd8R?
- threat
- 2.Sdc3#
- 2.Sb4#
- 2.Sf4#
- 2.Se7#
- 1...Rxe4
- 2.Se3#
- 2.Se7#
- 1...Rxa6
- 2.Se7#
- 1...Be3
- 2.Sdc3#
- 1...Se6
- 2.Se7#
- 1...Sf6
- 2.Se7#
- 2.Rxf6#
- 1...Rf4
- 2.Sdc3#
- 2.Sb4#
- 2.Sxf4#
- 2.Sc7#
- 2.Se7#
- 1...Bd2
- 2.Sdc3#
- 2.Sb4#
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Rxb8!
- threat
- 1.Sxg3+?
- Keys
- 1.Qe2!
- threat
- 2.Qxg4#
- 2.hxg4#
- 1...Rxe4
- 2.Se3#
- 1...Rxa6
- 2.Qxg4#
- 1...Qb6
- 2.Qxg4#
- 1...Be3
- 2.Qxg4#
- 1...Se6
- 2.Qxg4#
- 1...Sf6
- 2.Rxf6#
- 1...Rf4
- 2.Sc7#
- 1...Rg5
- 2.Qf3#
- 1...Rg6
- 2.Sb6#
- 1...Bf4
- 2.hxg4#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- Q(i);XP(K)::R(G)+S(H),DCHECK,XQ(i)
- R(b);SBLOCK,XS(F)::R(G)+S(H),DCHECK
- R(b);SBLOCK::R(G)+S(H)
- S(g);N_GUARD::R1(I)
- S(g);N_GUARD::R1(I),XS(g)
- Tries
- Try
- S(F);CHECK,XP(a)
- Vars
- R(b);XS(F)::QAR1(B)
- P(c);XS(F)::QAR1(B)
- Refutation
- K(d);P-FLIGHT
- Try
- P(K);XQ(i)
- Threat
- DUALS(4)
- Vars
- R(h);XR(I)::R(G)+S(H),DCHECK
- B(e);::R(G)+S(H)
- S(f);::R(G)+S(H),DCHECK
- Refutation
- R(h);P_PINB(C),XB(L)
- Try
- P(K);XQ(i)
- Threat
- DUALS(4)
- Vars
- R(h);XR(I)::R(G)+S(H),DCHECK
- B(e);::R(G)+S(H)
- S(f);::R(G)+S(H),DCHECK
- Refutation
- R(h);P_PINB(C),XB(L)
- Try
- P(K);XQ(i)
- Threat
- DUALS(4)
- Vars
- R(h);XR(I)::R(G)+S(H),DCHECK
- B(e);::R(G)+S(H)
- S(f);::R(G)+S(H),DCHECK
- Refutation
- R(h);P_PINB(C),XB(L)
- Try
- P(K);XQ(i)
- Threat
- DUALS(4)
- Vars
- R(h);XR(I)::R(G)+S(H),DCHECK
- B(e);::R(G)+S(H)
- S(f);::R(G)+S(H),DCHECK
- Refutation
- R(h);P_PINB(C),XB(L)
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(b);SBLOCK,XS(F)::R(G)+S(H),DCHECK
- R(h);XR(I)::QAB1(B),XR(b)
- Q(i);P_PINB(C)::QAB1(B),XR(b)
- B(e);::QAB1(B),XR(b)
- S(f);::QAB1(B),XR(b)
- S(g);N_GUARD::R1(I),XS(g)
- R(b);SBLOCK::R(G)+S(H)
- R(b);N_GUARD,S_CUTB(e)::QAR2(B)
- B(e);::P(D),XR(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).