MESON Chess Problem Database
Problem Display
PID: 48446 (K2R4/2p2q2/p1Q5/3P1B2/2Nk1P1B/2p1p3/2P1p3/n6b w - - 0 1)
Ahues, Herbert Siegfried Oskar
2nd HM., Het Belgisch Schaakbord (L'Echiquier Belge), 1976-1977
#2
9 + 9
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qxd5
- 2.Bf6#
- 1...Qh5
- 2.Bf6#
- 1...Qg8
- 2.Bf6#
- 1...Qf6
- 2.Bxf6#
- 1...Qd7
- 2.Bf6#
- 1...Qh7
- 2.Bf6#
- 1...Qxd5
- Tries
- 1.Sb2?
- threat
- 2.Qc4#
- 1...Qxd5
- 2.Bf6#
- 1...cxb2
- 2.c3#
- 1...Bxd5!
- threat
- 1.Sa3?
- threat
- 2.Qc4#
- 1...Qxd5
- 2.Bf6#
- 1...Bxd5!
- threat
- 1.Sa5?
- threat
- 2.Qc4#
- 1...Qxd5
- 2.Bf6#
- 1...Bxd5!
- threat
- 1.Se5?
- threat
- 2.Qc4#
- 1...Bxd5
- 2.Sf3#
- 1...Qxd5!
- threat
- 1.Sb2?
- Keys
- 1.Sd2!
- threat
- 2.Qc4#
- 1...Qxd5
- 2.Bf6#
- 1...Bxd5
- 2.Sf3#
- 1...cxd2
- 2.c3#
- 1...exd2
- 2.Bf2#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(i);N_GUARD,P_PINQ(G),P_SPINQ(i),XP(E)::B(D)
- Q(i);N_GUARD::B(D)
- Q(i);N_GUARD,P_PINR(I)::B(D)
- Q(i);N_GUARD::B(D),XQ(i)
- Tries
- Try
- S(B);
- Threat
- QAR1(G)
- Vars
- Q(i);N_GUARD,P_PINQ(G),P_SPINQ(i),XP(E)::B(D)
- P(d);OGATE,XS(B)::P(A)
- Refutation
- B(b);P_PINQ(G),P_SPINB(b),XP(E)
- Try
- S(B);
- Threat
- QAR1(G)
- Vars
- Q(i);N_GUARD,P_PINQ(G),P_SPINQ(i),XP(E)::B(D)
- Refutation
- B(b);P_PINQ(G),P_SPINB(b),XP(E)
- Try
- S(B);
- Threat
- QAR1(G)
- Vars
- Q(i);N_GUARD,P_PINQ(G),P_SPINQ(i),XP(E)::B(D)
- Refutation
- B(b);P_PINQ(G),P_SPINB(b),XP(E)
- Try
- S(B);
- Threat
- QAR1(G)
- Vars
- B(b);N_GUARD,P_PINQ(G),P_SPINB(b),XP(E)::S(B)
- Refutation
- Q(i);P_PINQ(G),P_SPINQ(i),XP(E)
- Try
- Actual
- S(B);
- Threat
- QAR1(G)
- Vars
- Q(i);N_GUARD,P_PINQ(G),P_SPINQ(i),XP(E)::B(D)
- B(b);N_GUARD,P_PINQ(G),P_SPINB(b),XP(E)::S(B)
- P(d);OGATE,XS(B)::P(A)
- P(e);OGATEB,XS(B)::B(D)
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).