MESON Chess Problem Database
Problem Display
PID: 200384 (BB2Q3/1r6/4NP2/1R2pk1P/Rb2Np2/3np2P/4P3/5K2 w - - 0 1)
le Comte, Jan Willem
Op de Hoogte, 1909
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qg6#
- 1...Rxb5
- 2.Sg7#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 1...Ra7
- 2.Sd4#
- 1...Rc7
- 2.Sd4#
- 1...Re7
- 2.Sd4#
- 1...Rf7
- 2.Sd4#
- 1...Rg7
- 2.Sd4#
- 2.Sxg7#
- 1...Rh7
- 2.Sd4#
- 1...Rxb8
- 2.Sd4#
- 2.Sg7#
- 1...Be7
- 2.Sg7#
- 1...Sc1
- 2.Rxe5#
- 1...Se1
- 2.Rxe5#
- 1...Sb2
- 2.Rxe5#
- 1...Sf2
- 2.Rxe5#
- 1...Kxe4
- Tries
- 1.S6g5?
- threat
- 2.Qg6#
- 2.Qe6#
- 1...Rb6
- 2.Qg6#
- 1...Re7
- 2.Qg6#
- 1...Rf7
- 2.Qe6#
- 1...Rg7
- 2.Qe6#
- 1...Be7
- 2.Qg6#
- 1...Sc5
- 2.Qg6#
- 2.Qxe5#
- 1...f3!
- threat
- 1.Bxb7?
- threat
- 2.Sd4#
- 2.Sg7#
- 1...Bc3
- 2.Sg7#
- 1...Bc5
- 2.Sg7#
- 1...Bf8
- 2.Sd4#
- 1...Sc5
- 2.Sg7#
- 1...f3!
- threat
- 1.Ra6?
- threat
- 2.Qg6#
- 1...Kxe4
- 2.Qg6#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 1...Rf7
- 2.Sd4#
- 1...Rg7
- 2.Sd4#
- 2.Sxg7#
- 1...Bd6!
- threat
- 1.Qf7?
- 1...Kxe4
- 2.Qg6#
- 2.Qh7#
- 1...Rxb5
- 2.Sg7#
- 1...Rxf7
- 2.Sd4#
- 1...Rxb8
- 2.Sd4#
- 2.Sg7#
- 1...Be1
- 2.Sd6#
- 2.Sg7#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 1...Ra7
- 2.Sd4#
- 2.Sg7#
- 1...Rc7
- 2.Sd4#
- 2.Sg7#
- 1...Rd7
- 2.Sg7#
- 1...Re7
- 2.Sd4#
- 2.Sg7#
- 2.fxe7#
- 1...Bd2
- 2.Sd6#
- 2.Sg7#
- 1...Ba3
- 2.Sg7#
- 1...Bc3
- 2.Sd6#
- 2.Sg7#
- 1...Ba5
- 2.Sd6#
- 2.Sg7#
- 1...Bc5
- 2.Sg7#
- 1...Bd6
- 2.Sxd6#
- 2.Sg7#
- 1...Be7
- 2.Sg7#
- 2.fxe7#
- 1...Sc1
- 2.Rxe5#
- 1...Se1
- 2.Rxe5#
- 1...Sb2
- 2.Rxe5#
- 1...Sf2
- 2.Rxe5#
- 1...Sc5
- 2.Sd6#
- 1...f3
- 2.Sg3#
- 1...Bf8!
- 1...Kxe4
- 1.Qg8?
- 1...Kxe4
- 2.Qh7#
- 2.Qg6#
- 1...Rxb5
- 2.Sg7#
- 2.Qg4#
- 1...Rxb8
- 2.Sd4#
- 2.Sg7#
- 2.Qg4#
- 1...Be1
- 2.Qg4#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 2.Qg4#
- 1...Ra7
- 2.Sd4#
- 2.Qg4#
- 1...Rc7
- 2.Sd4#
- 2.Qg4#
- 1...Rd7
- 2.Qg4#
- 1...Re7
- 2.Sd4#
- 2.Qg4#
- 1...Rf7
- 2.Sd4#
- 2.Qg4#
- 1...Rg7
- 2.Sd4#
- 2.Sxg7#
- 1...Rh7
- 2.Sd4#
- 2.Qg4#
- 1...Bd2
- 2.Qg4#
- 1...Ba3
- 2.Qg4#
- 1...Bc3
- 2.Qg4#
- 1...Ba5
- 2.Qg4#
- 1...Bc5
- 2.Qg4#
- 1...Bd6
- 2.Qg4#
- 1...Be7
- 2.Sg7#
- 2.Qg4#
- 1...Bf8
- 2.Qg4#
- 1...Sc1
- 2.Rxe5#
- 1...Se1
- 2.Rxe5#
- 1...Sb2
- 2.Rxe5#
- 1...Sf2
- 2.Rxe5#
- 1...f3
- 2.Qg4#
- 1...Sc5!
- 1...Kxe4
- 1.S6g5?
- Keys
- 1.Qe7!
- 1...Kxe4
- 2.Qh7#
- 1...Rxb5
- 2.Sg7#
- 1...Rxe7
- 2.Sd4#
- 1...Rxb8
- 2.Sd4#
- 2.Sg7#
- 1...Bxe7
- 2.Sg7#
- 1...Be1
- 2.Sd6#
- 2.Sg7#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 1...Ra7
- 2.Sd4#
- 2.Sg7#
- 1...Rc7
- 2.Sd4#
- 2.Sg7#
- 1...Rd7
- 2.Sg7#
- 1...Bd2
- 2.Sd6#
- 2.Sg7#
- 1...Ba3
- 2.Sg7#
- 1...Bc3
- 2.Sd6#
- 2.Sg7#
- 1...Ba5
- 2.Sd6#
- 2.Sg7#
- 1...Bc5
- 2.Sg7#
- 1...Bd6
- 2.Sxd6#
- 2.Sg7#
- 1...Sc1
- 2.Rxe5#
- 1...Se1
- 2.Rxe5#
- 1...Sb2
- 2.Rxe5#
- 1...Sf2
- 2.Rxe5#
- 1...Sc5
- 2.Sd6#
- 1...f3
- 2.Sg3#
- 1...Kxe4
- 1.Qe7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- K(f);N_SPINP(e),P_SPINB(c),P_SPINR(g),S_FLIGHT,XS(E)::QAB(L)
- R(g);N_GUARD,N_SPINP(e),XR(F)::S(H)
- R(g);::S(H)
- B(c);S_CUTR(g)::S(H)
- S(a);N_GUARD::R1(F),XP(e)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB1(L)
- B(c);::QAB1(L)
- Refutation
- P(d);
- Try
- B(J);XR(g)
- Threat
- DUALS(2)
- Vars
- B(c);::S(H)
- B(c);N_SPINP(e)::S(H)
- S(a);N_SPINP(e)::S(H)
- Refutation
- P(d);
- Try
- R(D);
- Threat
- QAB1(L)
- Vars
- K(f);N_SPINP(e),P_SPINR(g),S_FLIGHT,XS(E)::QAB(L)
- R(g);::S(H)
- Refutation
- B(c);
- Try
- Q(L);
- Vars
- R(g);N_SPINP(e),XR(F)::S(H)
- R(g);XQ(L)::S(H)
- R(g);::S(H)
- B(c);::S(H)
- B(c);N_SPINP(e)::S(H)
- S(a);N_GUARD::R1(F),XP(e)
- S(a);N_SPINP(e),S_CUTB(c)::S(E)
- P(d);N_GUARD::S(E)
- Refutation
- B(c);
- Try
- Q(L);
- Vars
- B(c);::QAB1(L)
- R(g);::QAB1(L)
- B(c);N_SPINP(e)::QAB1(L)
- S(a);N_GUARD::R1(F),XP(e)
- P(d);::QAB1(L)
- Refutation
- S(a);N_SPINP(e)
- Try
- Actual
- Q(L);
- Vars
- K(f);N_SPINP(e),P_SPINB(c),P_SPINR(g),S_FLIGHT,XS(E)::QAB(L)
- R(g);N_SPINP(e),XR(F)::S(H)
- R(g);XQ(L)::S(H)
- B(c);XQ(L)::S(H)
- R(g);::S(H)
- B(c);::S(H)
- B(c);N_SPINP(e)::S(H)
- S(a);N_GUARD::R1(F),XP(e)
- S(a);N_SPINP(e),S_CUTB(c)::S(E)
- P(d);N_GUARD::S(E)
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).