MESON Chess Problem Database
Problem Display
PID: 41365 (1B3RK1/7p/2N5/1qRN3B/4k3/8/n1Pp2bb/1Q6 w - - 0 1)
Dittrich, Stefan
3/4 Place, Match: Bulgaria - East Germany, 1983-1984
#2
9 + 7
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Qd3
- 2.cxd3#
- 1...Qa6
- 2.c4#
- 1...Qxc6
- 2.c3#
- 1...Qb3
- 2.cxb3#
- 1...Qa5
- 2.c3#
- 2.c4#
- 1...Qxc5
- 2.c4#
- 1...Bf1
- 2.Bf3#
- 1...Bh1
- 2.Qxh1#
- 1...Bf3
- 2.Bxf3#
- 1...Bh3
- 2.Bf3#
- 1...Bg1
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...h6
- 2.Bg6#
- 1...Qd3
- Tries
- 1.Rc4+?
- 1...Kxd5
- 2.Bf7#
- 1...Qxc4!
- 1...Kxd5
- 1.Re8+?
- 1...Be5
- 2.Rxe5#
- 1...Kf5!
- 1...Be5
- 1.Qf1?
- threat
- 2.Qxg2#
- 2.Qf5#
- 1...Qxc6
- 2.Qd3#
- 2.Qc4#
- 1...Bxf1
- 2.Bf3#
- 1...d1Q
- 2.Qf5#
- 1...d1B
- 2.Qf5#
- 1...Qe2
- 2.Qxe2#
- 2.Qf5#
- 1...Qd3
- 2.Qxd3#
- 2.Qf5#
- 2.cxd3#
- 1...Qb3
- 2.Qf5#
- 1...Bh1
- 2.Qxh1#
- 2.Qf5#
- 1...Bf3
- 2.Bxf3#
- 2.Qxf3#
- 1...Bh3
- 2.Bf3#
- 2.Qf3#
- 1...Bf4
- 2.Rxf4#
- 2.Qxg2#
- 2.Qxf4#
- 1...Qxf1!
- threat
- 1.Qxb5?
- threat
- 2.Rc4#
- 2.Qe2#
- 2.Qd3#
- 2.Qc4#
- 1...d1S
- 2.Rc4#
- 2.Qd3#
- 2.Qc4#
- 1...d1B
- 2.Rc4#
- 2.Qd3#
- 2.Qc4#
- 1...d1R
- 2.Qe2#
- 1...Bf1
- 2.Bf3#
- 1...Bf3
- 2.Bxf3#
- 2.Rc4#
- 2.Qd3#
- 2.Qc4#
- 1...Bg1
- 2.Rf4#
- 2.Qd3#
- 1...Bf4
- 2.Rc4#
- 2.Rxf4#
- 2.Qd3#
- 2.Qc4#
- 1...Be5
- 2.Qe2#
- 2.Qd3#
- 1...Sc1
- 2.Rc4#
- 2.Qa4#
- 2.Qc4#
- 2.Qb4#
- 1...Sc3
- 2.Rc4#
- 2.Qd3#
- 2.Qc4#
- 2.Qb4#
- 1...Sb4
- 2.Rc4#
- 2.Qe2#
- 2.Qc4#
- 2.Qxb4#
- 1...d1Q!
- threat
- 1.Rc4+?
- Keys
- 1.Qg1!
- threat
- 2.Sf6#
- 2.Qe3#
- 2.Qd4#
- 2.Qxg2#
- 1...Qxc6
- 2.Qe3#
- 1...Qxc5
- 2.Qxg2#
- 1...Qxb8
- 2.Qe3#
- 2.Qd4#
- 2.Qxg2#
- 1...Bxg1
- 2.Rf4#
- 1...Bxb8
- 2.Qe3#
- 2.Qd4#
- 2.Qxg2#
- 1...d1Q
- 2.Sf6#
- 2.Qe3#
- 1...d1S
- 2.Sf6#
- 2.Qd4#
- 2.Qxg2#
- 1...d1B
- 2.Sf6#
- 2.Qe3#
- 2.Qd4#
- 1...d1R
- 2.Sf6#
- 2.Qe3#
- 2.Qxg2#
- 1...Qf1
- 2.Qe3#
- 2.Qd4#
- 1...Qe2
- 2.Sf6#
- 2.Qd4#
- 1...Qd3
- 2.Sf6#
- 1...Qa4
- 2.Sf6#
- 2.Qe3#
- 2.Qxg2#
- 1...Qc4
- 2.Qe3#
- 2.Qxg2#
- 1...Qb2
- 2.Qe3#
- 2.Qxg2#
- 1...Qb3
- 2.Qd4#
- 1...Qb4
- 2.Sf6#
- 2.Qe3#
- 2.Qxg2#
- 1...Bf1
- 2.Sf6#
- 2.Bf3#
- 2.Qe3#
- 2.Qd4#
- 1...Bh1
- 2.Sf6#
- 2.Qe3#
- 2.Qd4#
- 2.Qxh1#
- 1...Bf3
- 2.Sf6#
- 2.Bxf3#
- 2.Qe3#
- 2.Qd4#
- 1...Bh3
- 2.Sf6#
- 2.Bf3#
- 2.Qe3#
- 2.Qd4#
- 1...Bf4
- 2.Sf6#
- 2.Rxf4#
- 2.Qd4#
- 2.Qxg2#
- 1...Be5
- 2.Qe3#
- 2.Qxg2#
- 1...Bd6
- 2.Qe3#
- 2.Qd4#
- 2.Qxg2#
- 1...Bc7
- 2.Qe3#
- 2.Qd4#
- 2.Qxg2#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(f);OGATE::P(B),XQ(f)
- Q(f);N_GUARD::QAB(A)+P(B)
- Q(f);N_GUARD,XS(F)::QAB(A)+P(B)
- Q(f);OGATE,P_PINS(D)::QAB(A)+P(B),XQ(f)
- Q(f);N_GUARD,XR(C)::QAB(A)+P(B)
- B(c);N_GUARD::B(E)
- B(c);OGATEB::QAB(A),XB(c)
- B(c);N_GUARD::B(E),XB(c)
- B(d);N_GUARD::R1(H)
- B(d);N_GUARD::R1(H),XB(d)
- P(g);N_GUARD::B(E)
- Tries
- Try
- R(C);CHECK
- Vars
- K(e);S_FLIGHT,XS(D)::B(E)
- Refutation
- Q(f);P_PINS(D),XR(C)
- Try
- R(H);CHECK
- Vars
- B(d);N_GUARD,P_SPINB(d)::R1(H),XB(d)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(c);N_GUARD,XQ(A)::B(E)
- P(b);::QAB1(A)
- Q(f);P_PINS(D)::QAB1(A)
- Refutation
- Q(f);XQ(A)
- Try
- Q(A);XQ(f)
- Threat
- DUALS(4)
- Vars
- P(b);::QAR2(A)
- B(c);N_GUARD::B(E)
- Refutation
- P(b);
- Try
- Actual
- Q(A);
- Threat
- DUALS(4)
- Vars
- Q(f);XS(F)::QAR1(A)
- Q(f);XR(C)::QAB(A),XB(c)
- B(d);N_GUARD,XQ(A)::R1(H)
- Q(f);::S(D)
- Q(f);P_PINS(D)::QAR1(A)
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).