MESON Chess Problem Database
Problem Display
PID: 82208 (2Qn2q1/8/B1b2N1b/8/3np1pN/1p2kpB1/7R/1K1R4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Tidskrift for Schack, 1978
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Sxg4#
- 1...Qd5
- 2.Sxg4#
- 1...Qf7
- 2.Sxg4#
- 1...Qh7
- 2.Sxg4#
- 1...Qe8
- 2.Sxg4#
- 1...Qf8
- 2.Sxg4#
- 1...Qh8
- 2.Sxg4#
- 1...Ba4
- 2.Qc1#
- 2.Qc3#
- 1...Bb5
- 2.Qc1#
- 1...Bd5
- 2.Qc1#
- 2.Qc3#
- 1...Bb7
- 2.Qc1#
- 2.Qc3#
- 1...Bd7
- 2.Qc1#
- 2.Qc3#
- 1...Ba8
- 2.Qc1#
- 2.Qc3#
- 1...Be8
- 2.Qc1#
- 2.Qc3#
- 1...Bf4
- 2.Bf2#
- 1...Bg5
- 2.Sxg4#
- 1...Bg7
- 2.Sxg4#
- 1...Sc2
- 2.Sf5#
- 1...Se2
- 2.Sf5#
- 1...Sb5
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...S4e6
- 2.Sf5#
- 1...Qc4
- Tries
- 1.Sd5+?
- 1...Bxd5
- 2.Qc1#
- 2.Qc3#
- 1...Qxd5!
- 1...Bxd5
- 1.Sh5?
- threat
- 2.Bf2#
- 1...Bb5
- 2.Qc1#
- 1...Sb5
- 2.Sf5#
- 1...f2
- 2.Bxf2#
- 1...Qc4!
- threat
- 1.Re2+?
- 1...Sxe2
- 2.Sf5#
- 1...fxe2!
- 1...Sxe2
- 1.Qxg4?
- threat
- 2.Bf2#
- 1...Qxg4
- 2.Sxg4#
- 1...Bb5
- 2.Qxe4#
- 1...Sb5
- 2.Sf5#
- 1...f2
- 2.Sg2#
- 2.Bxf2#
- 1...Qc4!
- threat
- 1.Qf5?
- threat
- 2.Bf2#
- 1...Sxf5
- 2.Sxf5#
- 1...Qc4
- 2.Sxg4#
- 1...Bb5
- 2.Qxe4#
- 1...f2
- 2.Sg2#
- 2.Bxf2#
- 2.Qxf2#
- 1...Sb5!
- threat
- 1.Qxc6?
- threat
- 2.Qxe4#
- 2.Qc1#
- 2.Qc3#
- 1...S4xc6
- 2.Sf5#
- 1...Qe6
- 2.Qc1#
- 2.Qc3#
- 1...Qc4
- 2.Sxg4#
- 2.Qxe4#
- 1...Qd5
- 2.Sxg4#
- 2.Sxd5#
- 2.Qc1#
- 2.Qc3#
- 1...Qh7
- 2.Sxg4#
- 2.Sd5#
- 2.Qc1#
- 2.Qc3#
- 1...Qg6
- 2.Sd5#
- 2.Qc1#
- 2.Qc3#
- 1...Qe8
- 2.Sxg4#
- 2.Sd5#
- 2.Qc1#
- 2.Qc3#
- 1...Sc2
- 2.Sf5#
- 2.Qxe4#
- 2.Qc3#
- 1...Se2
- 2.Sf5#
- 2.Qxe4#
- 1...Sb5
- 2.Sf5#
- 2.Qxe4#
- 2.Qc1#
- 1...b2
- 2.Qxe4#
- 2.Qc3#
- 1...S8xc6!
- threat
- 1.Qb8?
- threat
- 2.Bf2#
- 1...Qc4
- 2.Sxg4#
- 1...Sb5
- 2.Sf5#
- 1...f2
- 2.Bxf2#
- 1...Bb5!
- threat
- 1.Sd5+?
- Keys
- 1.Qc7!
- threat
- 2.Bf2#
- 1...Qc4
- 2.Sxg4#
- 1...Bb5
- 2.Qc1#
- 1...Sb5
- 2.Sf5#
- 1...f2
- 2.Bxf2#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(j);N_GUARD::S(G),XP(f)
- B(g);OGATE::QAB(H)
- B(h);SBLOCK::B(D)
- B(h);S_CUTQ(j)::S(G),XP(f)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Tries
- Try
- S(G);CHECK
- Refutation
- Q(j);XS(G)
- Try
- S(G);
- Threat
- B(D)
- Vars
- B(g);OGATE::QAB(H)
- S(d);N_GUARD::S(E)
- P(c);::B(D),XP(c)
- Refutation
- Q(j);
- Try
- R(C);CHECK
- Vars
- S(d);XR(C)::S(E)
- Refutation
- P(c);XR(C)
- Try
- Q(H);XP(f)
- Threat
- B(D)
- Vars
- Q(j);XQ(H)::S(G),XQ(j)
- B(g);N_GUARD::QAR1(H),XP(e)
- S(d);N_GUARD::S(E)
- Refutation
- Q(j);
- Try
- Q(H);
- Threat
- B(D)
- Vars
- S(d);XQ(H)::S(E),XS(d)
- Q(j);N_GUARD::S(G),XP(f)
- B(g);N_GUARD::QAR1(H),XP(e)
- Refutation
- S(d);
- Try
- Q(H);XB(g)
- Threat
- DUALS(3)
- Vars
- S(d);N_GUARD,XQ(H)::S(E)
- Refutation
- S(i);XQ(H)
- Try
- Q(H);
- Threat
- B(D)
- Vars
- Q(j);N_GUARD::S(G),XP(f)
- S(d);N_GUARD::S(E)
- P(c);::B(D),XP(c)
- Refutation
- B(g);
- Try
- Actual
- Q(H);
- Threat
- B(D)
- Vars
- Q(j);N_GUARD::S(G),XP(f)
- B(g);OGATE::QAB(H)
- S(d);N_GUARD::S(E)
- P(c);::B(D),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).