MESON Chess Problem Database
Problem Display
PID: 223040 (1q6/3b4/1B2p1R1/1NP1kp1K/6p1/3p2P1/6Q1/b6B w - - 0 1)
Schuster, Zsigmond
Vasarnapi Ujsag, 1886
#2
8 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qc7
- 2.Bxc7#
- 1...Qa8
- 2.Bc7#
- 1...Qe8
- 2.Bc7#
- 1...Qg8
- 2.Bc7#
- 1...Bb2
- 2.Qxb2#
- 1...d2
- 2.Qe2#
- 1...f4
- 2.Qe4#
- 1...Qc7
- Tries
- 1.Bd8?
- threat
- 2.Bf6#
- 1...f4
- 2.Rg5#
- 2.Qe4#
- 1...Qxd8!
- threat
- 1.Qf1?
- threat
- 2.Qxa1#
- 2.Qe1#
- 2.Qf4#
- 1...Bxb5
- 2.Qxa1#
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...Qd6
- 2.Qe1#
- 2.Qf4#
- 1...Qa7
- 2.Qe1#
- 2.Qf4#
- 1...Qb7
- 2.Qxa1#
- 2.Qf4#
- 1...Qa8
- 2.Bc7#
- 2.Qf4#
- 1...Bb2
- 2.Qe1#
- 2.Qf4#
- 1...Bc3
- 2.Qf4#
- 1...Bd4
- 2.Qf4#
- 1...Bc6
- 2.Qxa1#
- 2.Qf4#
- 1...d2
- 2.Qe2#
- 2.Qxa1#
- 2.Qf4#
- 1...Qh8+!
- threat
- 1.Qd2?
- threat
- 2.Qe1#
- 2.Qe3#
- 2.Qf4#
- 1...Bxb5
- 2.Qe3#
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...Qb7
- 2.Qf4#
- 1...Qa8
- 2.Bc7#
- 2.Qf4#
- 1...Bc3
- 2.Qxc3#
- 2.Qe3#
- 2.Qf4#
- 1...Bd4
- 2.Qf4#
- 1...Bc6
- 2.Qf4#
- 1...Qh8+!
- threat
- 1.Qf2?
- threat
- 2.Qe1#
- 2.Qe3#
- 2.Qf4#
- 1...Bxb5
- 2.Qe3#
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...Qb7
- 2.Qf4#
- 1...Qa8
- 2.Bc7#
- 2.Qf4#
- 1...Bc3
- 2.Qe3#
- 2.Qf4#
- 1...Bd4
- 2.Qxd4#
- 2.Qf4#
- 1...Bc6
- 2.Qf4#
- 1...d2
- 2.Qe3#
- 2.Qe2#
- 2.Qf4#
- 1...Qh8+!
- threat
- 1.Bd8?
- Keys
- 1.Qa8!
- threat
- 2.Qxa1#
- 2.Qxb8#
- 1...Qh8+
- 2.Qxh8#
- 1...Qxb6
- 2.Qxa1#
- 2.Qh8#
- 1...Qxa8
- 2.Bc7#
- 1...Bxb5
- 2.Qxa1#
- 1...f4
- 2.Qe4#
- 1...Qd6
- 2.Qh8#
- 1...Qa7
- 2.Qh8#
- 1...Qc7
- 2.Bxc7#
- 2.Qxa1#
- 2.Qh8#
- 1...Qb7
- 2.Qxa1#
- 2.Qh8#
- 1...Qc8
- 2.Qxa1#
- 1...Qd8
- 2.Qxa1#
- 1...Qe8
- 2.Bc7#
- 2.Qxa1#
- 1...Qf8
- 2.Qxa1#
- 1...Qg8
- 2.Bc7#
- 2.Qxa1#
- 1...Bb2
- 2.Qxb8#
- 1...Bc3
- 2.Qxb8#
- 1...Bd4
- 2.Qxb8#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- Q(h);N_GUARD::B(G),XQ(h)
- Q(h);N_GUARD::B(G)
- Q(h);N_GUARD,P_PINR(H)::B(G)
- B(a);N_GUARD::QAB(B),XB(a)
- P(b);N_GUARD::QAR(B)
- P(e);N_GUARD::QAR1(B)
- Tries
- Try
- B(G);
- Threat
- B(G)
- Refutation
- Q(h);XB(G)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(e);::QAB1(B),XP(e)
- B(a);::QAB1(B)
- Refutation
- Q(h);CHECK
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(e);::QAB1(B),XP(e)
- Q(h);::QAB1(B)
- B(a);::QAB1(B)
- B(g);::QAB1(B)
- Refutation
- Q(h);CHECK
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(e);::QAB1(B),XP(e)
- Q(h);::QAB1(B)
- B(g);::QAB1(B)
- Refutation
- Q(h);CHECK
- Try
- Actual
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,OGATE::QAB(B),XQ(h)
- Q(h);N_GUARD,XQ(B)::B(G)
- B(g);XS(D)::QAB(B),XB(a)
- P(e);N_GUARD::QAR1(B)
- Q(h);OGATE::QAB(B)
- Q(h);::QAB(B),XB(a)
- B(a);::QAB(B),XQ(h)
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).