MESON Chess Problem Database
Problem Display
PID: 246552 (4R1bB/7Q/3bq3/2pp1pn1/N3kpNR/2P1Pr2/4KP2/7B w - - 0 1)
Segers, Marcel
The Problemist, 1989
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Sf6#
- 1...Be5
- 2.Sxc5#
- 1...Bc7
- 2.Sxc5#
- 1...Bb8
- 2.Sxc5#
- 1...Sh3
- 2.Bxf3#
- 1...Sf7
- 2.Bxf3#
- 1...Sxh7
- 2.Bxf3#
- 1...fxe3
- 2.Se5#
- 1...d4
- 2.Qb7#
- 1...Qe5
- Tries
- 1.Se5?
- threat
- 2.Rxf4#
- 1...Bxe5
- 2.Sxc5#
- 1...Sh3
- 2.Bxf3#
- 1...d4!
- threat
- 1.Sh6?
- threat
- 2.Qxf5#
- 1...Sxh7
- 2.Bxf3#
- 1...Be5
- 2.Sxc5#
- 1...Be7
- 2.Rxf4#
- 1...Bxh7!
- threat
- 1.Rxe6+?
- 1...Be5
- 2.Sxc5#
- 2.Sf6#
- 2.Rxe5#
- 1...Sxe6
- 2.Bxf3#
- 1...Bxe6!
- 1...Be5
- 1.Se5?
- Keys
- 1.c4!
- threat
- 2.Sc3#
- 1...fxe3
- 2.Se5#
- 1...Be5
- 2.Sxc5#
- 1...d4
- 2.Qb7#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(i);::S(G)
- B(h);N_GUARD,N_SPINQ(i)::S(F),XP(d)
- B(h);N_GUARD::S(F),XP(d)
- S(g);N_GUARD::B(A),XR(a)
- S(g);N_GUARD,N_SPINP(f),XQ(I)::B(A),XR(a)
- P(c);XP(E)::R(H)+S(G)
- P(e);OGATEB::QAB(I)
- Tries
- Try
- S(G);N_PINP(f),N_PINQ(i),P_PINP(c)
- Threat
- R1(H),XP(c)
- Vars
- B(h);N_GUARD,XS(G)::S(F),XP(d)
- S(g);N_GUARD::B(A),XR(a)
- Refutation
- P(e);
- Try
- S(G);N_PINP(f),P_PINP(c)
- Threat
- QAB1(I),XP(f)
- Vars
- S(g);N_GUARD,XQ(I)::B(A),XR(a)
- B(h);N_GUARD,N_SPINQ(i)::S(F),XP(d)
- B(h);N_GUARD,N_SPINQ(i)::R1(H),XP(c)
- Refutation
- B(j);XQ(I)
- Try
- R(J);CHECK,XQ(i)
- Vars
- S(g);XR(J)::B(A),XR(a)
- Refutation
- B(j);XR(J)
- Try
- Actual
- P(D);
- Threat
- S(F)
- Vars
- P(c);XP(E)::R(H)+S(G)
- B(h);N_GUARD,N_SPINQ(i)::S(F),XP(d)
- P(e);OGATEB::QAB(I)
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).