MESON Chess Problem Database
Problem Display
PID: 161969 (4R3/q5Nn/3P2B1/b2kPn2/2RNp3/1P2pp2/7B/1K6 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Thema Danicum, 1984
#2
10 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Bf7#
- 1...Qc5
- 2.Bf7#
- 1...Qb6
- 2.Bf7#
- 1...Qb8
- 2.Bf7#
- 1...Qa6
- 2.Bf7#
- 1...Qf7
- 2.Bxf7#
- 1...Qa8
- 2.Bf7#
- 1...Bc7
- 2.Bf7#
- 1...Se7
- 2.Bf7#
- 1...Qxd4
- Tries
- 1.Sgxf5?
- threat
- 2.Sxe3#
- 1...Qxd4
- 2.Bf7#
- 1...e2
- 2.Se3#
- 1...Bd2!
- threat
- 1.Sh5?
- threat
- 2.Sf4#
- 1...Se7
- 2.Bf7#
- 1...Qe7!
- threat
- 1.Sge6?
- threat
- 2.Sf4#
- 1...Qe7
- 2.Rc5#
- 1...Se7!
- threat
- 1.Sgxf5?
- Keys
- 1.Sde6!
- threat
- 2.Sf4#
- 1...Qc5
- 2.Rxc5#
- 1...Qe7
- 2.Rc5#
- 1...Se7
- 2.Bxe4#
- threat
- 1.Sde6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(g);N_GUARD,XS(E)::B(H)
- Q(g);N_GUARD::B(H)
- Q(g);N_GUARD,P_PINP(C)::B(H)
- Q(g);N_GUARD::B(H),XQ(g)
- B(d);S_CUTQ(g)::B(H)
- S(f);S_CUTQ(g)::B(H)
- Tries
- Try
- S(I);XS(f)
- Threat
- S(I),XP(a)
- Vars
- Q(g);N_GUARD,XS(E)::B(H)
- P(a);::S(I)
- Refutation
- B(d);
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(f);S_CUTQ(g)::B(H)
- Refutation
- Q(g);
- Try
- S(I);
- Threat
- S(I)
- Vars
- Q(g);N_GUARD::R1(D)
- Refutation
- S(f);
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- Q(g);N_GUARD::R1(D),XQ(g)
- Q(g);N_GUARD::R1(D)
- S(f);OGATE::B(H),XP(c)
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).