MESON Chess Problem Database
Problem Display
PID: 109650 (8/4N3/R6R/4kNnp/1bK1bnq1/2pp3B/7B/4Q3 w - - 0 1)
Vleugels, Johan Hubert
Match: Netherlands - Poland, 1990
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sc6#
- 2.Sg6#
- 1...Qe2
- 2.Sg6#
- 1...Qf3
- 2.Sc6#
- 2.Sg6#
- 1...Qxf5
- 2.Sc6#
- 1...Qg1
- 2.Sc6#
- 2.Sg6#
- 1...Qg2
- 2.Sc6#
- 2.Sg6#
- 1...Qg3
- 2.Sc6#
- 1...Qh4
- 2.Sc6#
- 2.Sg6#
- 1...Ba3
- 2.Qxc3#
- 1...Ba5
- 2.Rxa5#
- 1...Bd6
- 2.Qxc3#
- 1...Sf3
- 2.Rae6#
- 2.Rhe6#
- 1...Sxh3
- 2.Rae6#
- 2.Rhe6#
- 1...Se6
- 2.Raxe6#
- 2.Rhxe6#
- 1...Sf7
- 2.Rae6#
- 2.Rhe6#
- 1...Sh7
- 2.Rae6#
- 2.Rhe6#
- 1...Qd1
- Tries
- 1.Kxb4?
- threat
- 2.Ra5#
- 2.Qxc3#
- 1...Qxf5
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qg3
- 2.Qxc3#
- 1...Sf3
- 2.Ra5#
- 2.Rae6#
- 2.Rhe6#
- 1...Se6
- 2.Raxe6#
- 2.Rhxe6#
- 1...c2
- 2.Ra5#
- 2.Qc3#
- 2.Qa1#
- 1...d2
- 2.Ra5#
- 1...Qg1!
- threat
- 1.Bxf4+?
- 1...Qxf4
- 2.Sc6#
- 2.Sg6#
- 1...Kxf4!
- 1...Qxf4
- 1.Bxg4?
- threat
- 2.Sc6#
- 2.Sg6#
- 1...Bxe7
- 2.Qxc3#
- 1...Bd6
- 2.Sc6#
- 2.Qxc3#
- 1...Se6
- 2.Sc6#
- 2.Raxe6#
- 2.Rhxe6#
- 1...hxg4!
- threat
- 1.Ra5+?
- 1...Bc5
- 2.Rxc5#
- 2.Qxc3#
- 1...Bxa5!
- 1...Bc5
- 1.Raf6?
- threat
- 2.Sc6#
- 1...Bxe7
- 2.Qxc3#
- 1...Qe2!
- threat
- 1.Rhd6?
- threat
- 2.Rd5#
- 1...Se6
- 2.Rxe6#
- 1...Qe2
- 2.Sg6#
- 1...Qg3
- 2.Sc6#
- 1...Bxd6!
- threat
- 1.Rhf6?
- threat
- 2.Sg6#
- 1...Qxf5
- 2.Rxf5#
- 1...Bxe7
- 2.Qxc3#
- 1...Sxh3
- 2.Rae6#
- 2.Rfe6#
- 1...Bd6
- 2.Qxc3#
- 1...Se6
- 2.Raxe6#
- 2.Rfxe6#
- 1...Sf3
- 2.Rae6#
- 2.Rfe6#
- 1...Sf7
- 2.Rae6#
- 2.Rfe6#
- 1...Sh7
- 2.Rae6#
- 2.Rfe6#
- 1...Qg3!
- threat
- 1.Qxe4+?
- 1...Sxe4
- 2.Rae6#
- 2.Rhe6#
- 1...Kxe4!
- 1...Sxe4
- 1.Kxb4?
- Keys
- 1.Rad6!
- threat
- 2.Rd5#
- 1...Bxd6
- 2.Qxc3#
- 1...Qe2
- 2.Sg6#
- 1...Qg3
- 2.Sc6#
- threat
- 1.Rad6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(f);N_SPINB(d)::S(H)
- Q(f);XS(E)::S(H)
- Q(f);N_SPINS(e)::S(H)
- B(c);N_GUARD::QAB(A),XP(a)
- B(c);N_GUARD::R(F),XB(c)
- Tries
- Try
- K(D);P-FLIGHT,XB(c)
- Threat
- DUALS(2)
- Vars
- Q(f);XS(E)::QAB(A),XP(a)
- Q(f);N_SPINB(d)::QAB(A),XP(a)
- Q(f);N_SPINS(e)::QAB(A),XP(a)
- P(b);::R(F)
- Refutation
- Q(f);
- Try
- B(B);CHECK,XS(e)
- Refutation
- K(g);N_SPINB(d),S_FLIGHT,XB(B)
- Try
- B(C);XQ(f)
- Threat
- DUALS(2)
- Vars
- B(c);N_GUARD,XS(H)::QAB(A),XP(a)
- Refutation
- P(i);XB(C)
- Try
- R(F);CHECK
- Refutation
- B(c);XR(F)
- Try
- R(F);
- Threat
- S(H)
- Vars
- B(c);N_GUARD,XS(H)::QAB(A),XP(a)
- Refutation
- Q(f);N_SPINB(d)
- Try
- R(G);
- Threat
- R1(G)
- Vars
- S(h);N_GUARD::R1(G),XS(h)
- Q(f);N_SPINB(d)::S(H)
- Q(f);N_SPINS(e)::S(H)
- Refutation
- B(c);XR(G)
- Try
- R(G);
- Threat
- S(H)
- Vars
- Q(f);OGATE,XS(E)::R1(G),XQ(f)
- B(c);N_GUARD,XS(H)::QAB(A),XP(a)
- B(c);N_GUARD::QAB(A),XP(a)
- Refutation
- Q(f);N_SPINS(e)
- Try
- Q(A);CHECK,XB(d)
- Refutation
- K(g);N_SPINS(e),P-FLIGHT,XQ(A)
- Try
- Actual
- R(F);
- Threat
- R1(F)
- Vars
- B(c);N_GUARD,XR(F)::QAB(A),XP(a)
- Q(f);N_SPINB(d)::S(H)
- Q(f);N_SPINS(e)::S(H)
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).