MESON Chess Problem Database
Problem Display
PID: 107968 (2n5/2b5/5QN1/6n1/r3k1NK/3R2p1/4P3/8 w - - 0 1)
di Scala, Pascal
Gazeta Czestochowska, 1980
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rd4#
- 1...Ra2
- 2.Rd4#
- 1...Ra3
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Ra5
- 2.Rd4#
- 1...Ra6
- 2.Rd4#
- 1...Ra7
- 2.Rd4#
- 1...Ra8
- 2.Rd4#
- 1...Bf4
- 2.Qxf4#
- 1...Ba5
- 2.Qe5#
- 2.Qf4#
- 1...Be5
- 2.Qxe5#
- 1...Bb6
- 2.Qe5#
- 2.Qf4#
- 1...Bd8
- 2.Qe5#
- 2.Qf4#
- 1...Sf3+
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...Sd6
- 2.Qe5#
- 2.Qf4#
- 1...g2
- 2.Sf2#
- 1...Ra1
- Tries
- 1.Se3?
- threat
- 2.Qf5#
- 2.Qc6#
- 1...Sf3+
- 2.Qxf3#
- 1...Rc4
- 2.Qf5#
- 1...Rd4
- 2.Qxd4#
- 2.Qf5#
- 1...Ra5
- 2.Qd4#
- 1...Ra6
- 2.Qd4#
- 2.Qf5#
- 1...Bd6
- 2.Qf5#
- 1...Se6
- 2.Qf3#
- 2.Qf5#
- 1...Sb6
- 2.Qf5#
- 1...Sd6
- 2.Qe5#
- 2.Qf4#
- 1...Sa7
- 2.Qf5#
- 1...Se7!
- threat
- 1.S4e5?
- threat
- 2.Qf4#
- 1...Sf3+
- 2.Qxf3#
- 2.exf3#
- 1...Bxe5
- 2.Qxe5#
- 1...Sh3
- 2.Qf3#
- 1...Se6
- 2.Qf3#
- 1...Rd4!
- threat
- 1.Sh6?
- threat
- 2.Qf5#
- 2.Qc6#
- 1...Sf3+
- 2.Qxf3#
- 1...Rd4
- 2.Qxd4#
- 2.Qf5#
- 1...Rc4
- 2.Qf5#
- 1...Ra5
- 2.Qd4#
- 1...Ra6
- 2.Qd4#
- 2.Qf5#
- 1...Bd6
- 2.Qf5#
- 1...Se6
- 2.Qf3#
- 2.Qf5#
- 1...Sb6
- 2.Qf5#
- 1...Sd6
- 2.Qe5#
- 2.Qf4#
- 1...Sa7
- 2.Qf5#
- 1...Se7!
- threat
- 1.Se7?
- threat
- 2.Re3#
- 2.Qf5#
- 1...Sf3+
- 2.Qxf3#
- 1...Ra3
- 2.Rd4#
- 2.Qd4#
- 2.Qf5#
- 1...Ra5
- 2.Re3#
- 2.Rd4#
- 2.Qd4#
- 1...Bf4
- 2.Qf5#
- 2.Qc6#
- 2.Qg6#
- 1...Be5
- 2.Qxe5#
- 2.Qf5#
- 1...Bb6
- 2.Qe5#
- 2.Qf5#
- 1...Sd6
- 2.Re3#
- 2.Qe5#
- 1...Sxe7!
- threat
- 1.Rd6?
- threat
- 2.Qe5#
- 2.Qf4#
- 1...Sf3+
- 2.Qxf3#
- 2.exf3#
- 1...Sxd6
- 2.Qe5#
- 1...Ra5
- 2.Rd4#
- 2.Qf4#
- 1...Sh3
- 2.Qe5#
- 2.Qf3#
- 2.Qe6#
- 1...Se6
- 2.Qe5#
- 2.Qf3#
- 2.Qxe6#
- 1...Sf7
- 2.Qf3#
- 2.Qf4#
- 1...Bxd6!
- threat
- 1.Qxg5?
- threat
- 2.Sf6#
- 2.Qd5#
- 1...Se7
- 2.Sf6#
- 1...Rd4
- 2.Sf6#
- 2.Re3#
- 1...Ra5
- 2.Sf6#
- 1...Ra6
- 2.Qd5#
- 1...Be5
- 2.Qxe5#
- 1...Sb6
- 2.Sf6#
- 1...Bd8!
- threat
- 1.Qe6+?
- 1...Be5
- 2.Sf6#
- 2.Qxe5#
- 1...Sxe6!
- 1...Be5
- 1.Se3?
- Keys
- 1.Sf4!
- threat
- 2.Re3#
- 1...Sf3+
- 2.exf3#
- 1...Bxf4
- 2.Qg6#
- 1...Ra3
- 2.Rd4#
- 1...Be5
- 2.Qxe5#
- 1...Bb6
- 2.Qe5#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::R1(B)
- R(b);N_GUARD::R1(B),XR(b)
- B(e);N_GUARD::QAR1(E),XB(e)
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- S(d);N_GUARD::QAB1(E)
- P(a);N_GUARD::S(C)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- R(b);::QAB1(E)
- R(b);N_GUARD::QAR1(E)
- B(e);::QAB1(E)
- S(f);::QAB1(E)
- Refutation
- S(f);
- Try
- S(C);
- Threat
- QAR1(E)
- Vars
- B(e);OGATE,XS(C)::QAR1(E),XB(e)
- S(d);N_GUARD::QAB1(E)
- Refutation
- R(b);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- R(b);::QAB1(E)
- R(b);N_GUARD::QAR1(E)
- B(e);::QAB1(E)
- S(f);::QAB1(E)
- Refutation
- S(f);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- Refutation
- S(f);XS(F)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- S(f);XR(B)::QAR1(E)
- Refutation
- B(e);XR(B)
- Try
- Q(E);XS(d)
- Threat
- DUALS(2)
- Vars
- S(f);::S(C)
- R(b);::S(C)
- R(b);::QAB1(E)
- B(e);N_GUARD::QAR1(E),XB(e)
- Refutation
- B(e);P_PINQ(E)
- Try
- Q(E);CHECK
- Refutation
- S(d);XQ(E)
- Try
- Actual
- S(F);
- Threat
- R1(B)
- Vars
- S(d);CHECK,OGATE::P(A),XS(d)
- B(e);SBLOCK,XS(F)::QAB(E)
- R(b);N_GUARD::R1(B)
- B(e);N_GUARD::QAR1(E),XB(e)
- B(e);N_GUARD::QAR1(E)
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).