MESON Chess Problem Database
Problem Display
PID: 90717 (5QBK/7p/R3N3/2p1k2n/1prRr3/1qb5/3P1N2/1b6 w - - 0 1)
Fleck, Ferenc
Die Schwalbe, 1964
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sg4#
- 1...Re2
- 2.Sg4#
- 1...Re3
- 2.Sg4#
- 1...Rg4
- 2.Sxg4#
- 1...Ba2
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 1...Sf4
- 2.Sg4#
- 1...Re1
- Tries
- 1.Sg5?
- threat
- 2.Sf3#
- 2.Rd5#
- 1...Kxd4
- 2.Sf3#
- 2.Qd6#
- 1...Rcxd4
- 2.Sf3#
- 1...Rexd4
- 2.Sf3#
- 1...Bxd2
- 2.Rd5#
- 1...cxd4
- 2.Sf3#
- 1...Sf6
- 2.Qxf6#
- 1...Qd1
- 2.Rd5#
- 1...Re3
- 2.Rd5#
- 1...Rf4
- 2.Rd5#
- 1...Ba1
- 2.Rd5#
- 1...Bb2
- 2.Rd5#
- 1...Sf4
- 2.Sf3#
- 2.Qf6#
- 1...Bxd4!
- threat
- 1.Sc7?
- threat
- 2.Rd5#
- 1...Kxd4
- 2.Qd6#
- 1...Rexd4
- 2.Re6#
- 1...Bxd4
- 2.Re6#
- 1...cxd4
- 2.Re6#
- 1...Sf6
- 2.Qxf6#
- 1...Sf4
- 2.Qf6#
- 1...Rcxd4!
- threat
- 1.Sg7?
- threat
- 2.Rd5#
- 2.Qd6#
- 1...Kxd4
- 2.Qd6#
- 1...Rcxd4
- 2.Qf5#
- 1...Bxd4
- 2.Qd6#
- 2.Qf5#
- 2.Qb8#
- 1...Sxg7
- 2.Rd5#
- 2.Qf6#
- 1...cxd4
- 2.Qd6#
- 2.Qf5#
- 1...Sf6
- 2.Qd6#
- 2.Qxf6#
- 1...Sf4
- 2.Qd6#
- 2.Qf6#
- 1...Rexd4!
- threat
- 1.Sd8?
- threat
- 2.Sc6#
- 2.Rd5#
- 1...Kxd4
- 2.Sc6#
- 2.Qd6#
- 1...Rcxd4
- 2.Sc6#
- 1...Rexd4
- 2.Sc6#
- 1...Bxd4
- 2.Sc6#
- 1...Sf6
- 2.Qxf6#
- 1...Qa4
- 2.Rd5#
- 1...Sf4
- 2.Sc6#
- 2.Qf6#
- 1...cxd4!
- threat
- 1.Qxc5+?
- 1...Kf6
- 2.Qg5#
- 1...Rxc5!
- 1...Kf6
- 1.Qg7+?
- 1...Kf5
- 2.Bxh7#
- 2.Qg5#
- 1...Sf6
- 2.Qg5#
- 1...Sxg7!
- 1...Kf5
- 1.Sg5?
- Keys
- 1.Sf4!
- threat
- 2.Rd5#
- 1...Kxd4
- 2.Qd6#
- 1...Rcxd4
- 2.Sg4#
- 1...Rexd4
- 2.Re6#
- 1...Bxd4
- 2.Sg4#
- 2.Re6#
- 1...Sxf4
- 2.Qf6#
- 1...cxd4
- 2.Sg4#
- 2.Re6#
- 1...Sf6
- 2.Qxf6#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- R(f);N_GUARD::S(B)
- R(f);N_GUARD::S(B),XR(f)
- B(a);N_GUARD::S(B)
- B(a);N_GUARD::S(B),XB(a)
- S(i);S_CUTR(f)::S(B)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(e);XR(C)::S(E)
- R(f);XR(C)::S(E)
- B(c);XP(A)::R1(C)
- P(g);XR(C)::S(E)
- S(i);N_GUARD::QAB1(F),XS(i)
- Q(b);::R1(C)
- R(f);::R1(C)
- B(c);::R1(C)
- Refutation
- B(c);XR(C)
- Try
- S(E);
- Threat
- R1(C)
- Vars
- K(h);S_FLIGHT,XR(C)::QAR2(F)
- R(f);SBLOCK,XR(C)::R1(D)
- B(c);SBLOCK,XR(C)::R1(D)
- P(g);SBLOCK,XR(C)::R1(D)
- S(i);N_GUARD::QAB1(F),XS(i)
- S(i);N_GUARD::QAB1(F)
- Refutation
- R(e);XR(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(h);S_FLIGHT,XR(C)::QAR2(F)
- R(e);SBLOCK,XR(C)::QAR1(F)
- Refutation
- R(f);XR(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(e);XR(C)::S(E)
- R(f);XR(C)::S(E)
- B(c);XR(C)::S(E)
- S(i);N_GUARD::QAB1(F),XS(i)
- Q(b);::R1(C)
- Refutation
- P(g);XR(C)
- Try
- Q(F);CHECK,XP(g)
- Vars
- K(h);OGATE,S_FLIGHT::QAB1(F)
- Refutation
- R(e);XQ(F)
- Try
- Q(F);CHECK
- Vars
- S(i);P_SPINS(i)::QAR2(F)
- Refutation
- S(i);XQ(F)
- Try
- Actual
- S(E);
- Threat
- R1(C)
- Vars
- K(h);S_FLIGHT,XR(C)::QAR2(F)
- R(e);SBLOCK,XR(C)::S(B)
- R(f);SBLOCK,XR(C)::R1(D)
- S(i);N_GUARD,XS(E)::QAB1(F)
- S(i);N_GUARD::QAB1(F),XS(i)
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).