MESON Chess Problem Database
Problem Display
PID: 109909 (3Nb2Q/4b1qr/1R6/3k1N1p/3P4/3P3B/K7/8 w - - 0 1)
Silva, Augusto
Caissa, 1980
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Qxd4#
- 1...Qe5
- 2.Qxe5#
- 1...Qf6
- 2.Bg2#
- 1...Qh6
- 2.Bg2#
- 2.Qe5#
- 1...Qf8
- 2.Se3#
- 2.Bg2#
- 2.Qe5#
- 1...Qxh8
- 2.Bg2#
- 1...Qg1
- 2.Qe5#
- 1...Qg2+
- 2.Bxg2#
- 1...Qg4
- 2.Se3#
- 2.Qe5#
- 1...Qg5
- 2.Qe5#
- 1...Qg6
- 2.Se3#
- 2.Qe5#
- 1...Qf7
- 2.Se3#
- 2.Bg2#
- 2.Qe5#
- 1...Qg8
- 2.Se3#
- 2.Qe5#
- 1...Bh4
- 2.Rd6#
- 1...Bg5
- 2.Bg2#
- 2.Rd6#
- 1...Bd6
- 2.Rxd6#
- 1...Bf6
- 2.Rd6#
- 1...Bxd8
- 2.Rd6#
- 1...Bg6
- 2.Bg2#
- 1...Qxd4
- Tries
- 1.Se6?
- threat
- 2.Se3#
- 2.Sf4#
- 2.Sc7#
- 1...Qg2+
- 2.Bxg2#
- 1...Qxd4
- 2.Qxd4#
- 1...Bd6
- 2.Se3#
- 2.Rxd6#
- 1...Bc6
- 2.Sf4#
- 2.Sc7#
- 1...Qe5
- 2.Qxe5#
- 1...Qh6
- 2.Sc7#
- 2.Bg2#
- 2.Qe5#
- 1...Qg1
- 2.Sf4#
- 2.Sc7#
- 2.Qe5#
- 1...Qg4
- 2.Se3#
- 2.Sc7#
- 2.Qe5#
- 1...Qg5
- 2.Sc7#
- 2.Qe5#
- 1...Ba3
- 2.Se3#
- 2.Sf4#
- 1...Bb4
- 2.Se3#
- 2.Sf4#
- 1...Bh4
- 2.Se3#
- 2.Sf4#
- 2.Rd6#
- 1...Bc5
- 2.Se3#
- 2.Sf4#
- 1...Bg5
- 2.Bg2#
- 2.Rd6#
- 1...Bf6
- 2.Se3#
- 2.Sf4#
- 2.Rd6#
- 1...Bd8
- 2.Se3#
- 2.Sf4#
- 2.Rd6#
- 1...Bf8
- 2.Se3#
- 2.Sf4#
- 1...Qg3!
- threat
- 1.Bg4?
- threat
- 2.Bf3#
- 1...Qxd4
- 2.Qxd4#
- 1...Qxg4
- 2.Se3#
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- 1...hxg4!
- threat
- 1.Rb5+?
- 1...Bc5
- 2.Rxc5#
- 1...Bxb5!
- 1...Bc5
- 1.Qxg7?
- threat
- 2.Se3#
- 2.Sxe7#
- 2.Bg2#
- 2.Qe5#
- 2.Qg2#
- 1...Bxd8
- 2.Se3#
- 2.Bg2#
- 2.Rd6#
- 2.Qe5#
- 2.Qg2#
- 1...Ba3
- 2.Se3#
- 2.Bg2#
- 2.Qe5#
- 2.Qg2#
- 1...Bb4
- 2.Se3#
- 2.Bg2#
- 2.Qe5#
- 2.Qg2#
- 1...Bh4
- 2.Se3#
- 2.Bg2#
- 2.Rd6#
- 2.Qe5#
- 2.Qg2#
- 1...Bc5
- 2.Se3#
- 2.Bg2#
- 2.Qe5#
- 2.Qg2#
- 1...Bg5
- 2.Bg2#
- 2.Rd6#
- 2.Qe5#
- 1...Bd6
- 2.Se3#
- 2.Bg2#
- 2.Rxd6#
- 2.Qg2#
- 1...Bf6
- 2.Bg2#
- 2.Rd6#
- 2.Qg2#
- 1...Bf8
- 2.Se3#
- 2.Bg2#
- 2.Qe5#
- 2.Qg2#
- 1...Bc6
- 2.Bg2#
- 2.Qe5#
- 2.Qg2#
- 1...Bg6
- 2.Se3#
- 2.Sxe7#
- 2.Bg2#
- 2.Qe5#
- 1...Rxg7!
- threat
- 1.Se6?
- Keys
- 1.Rg6!
- threat
- 2.Bg2#
- 1...Qxd4
- 2.Qxd4#
- 1...Qxg6
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- threat
- 1.Rg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(d);OGATE,XP(D)::QAR1(H),XQ(d)
- Q(d);OGATE::QAR1(H),XQ(d)
- Q(d);N_GUARD::B(C)
- Q(d);N_GUARD,XQ(H)::B(C)
- Q(d);OGATE::QAR1(H)
- Q(d);CHECK,N_GUARD::B(C),XQ(d)
- B(c);N_GUARD::R1(F)
- B(c);N_GUARD::R1(F),XB(c)
- B(c);N_GUARD,XS(G)::R1(F)
- B(f);S_CUTQ(d)::B(C)
- Tries
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- Q(d);CHECK,N_GUARD::B(C),XQ(d)
- Q(d);OGATE,XP(D)::QAR1(H),XQ(d)
- Q(d);OGATE::QAR1(H),XQ(d)
- Refutation
- Q(d);
- Try
- B(C);
- Threat
- B(C)
- Vars
- Q(d);OGATE,XP(D)::QAR1(H),XQ(d)
- Q(d);OGATE::QAR1(H),XQ(d)
- Refutation
- P(b);XB(C)
- Try
- R(F);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::R1(F),XB(c)
- Refutation
- B(f);XR(F)
- Try
- Q(H);XQ(d)
- Threat
- DUALS(5)
- Refutation
- R(e);XQ(H)
- Try
- Actual
- R(F);
- Threat
- B(C)
- Vars
- Q(d);OGATE,XP(D)::QAR1(H),XQ(d)
- Q(d);OGATE,XR(F)::QAR1(H)
- Q(d);OGATE::QAR1(H),XQ(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).