MESON Chess Problem Database
Problem Display
PID: 162614 (4N3/2r1N2B/4p3/1pB1k3/3R3n/p6r/Q1bP3P/2K5 w - - 0 1)
Fricke, Friedrich
Die Schwalbe, 1969
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Re4#
- 1...Rc6
- 2.Sxc6#
- 1...Ra7
- 2.Sc6#
- 1...Rb7
- 2.Sc6#
- 1...Rd7
- 2.Sc6#
- 1...Bd1
- 2.Re4#
- 1...Bb3
- 2.Re4#
- 1...Ba4
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Sf5
- 2.Sg6#
- 1...Rd3
- Tries
- 1.Rxh4?
- threat
- 2.Bd4#
- 2.Bd6#
- 2.d4#
- 1...Rxc5
- 2.d4#
- 1...Bxh7
- 2.d4#
- 1...Rd3
- 2.Re4#
- 1...Rc6
- 2.Sxc6#
- 2.Bd4#
- 2.d4#
- 1...Rd7
- 2.Sc6#
- 1...Bb1
- 2.d4#
- 1...Bd1
- 2.Re4#
- 2.d4#
- 1...Bb3
- 2.Re4#
- 2.d4#
- 1...Bd3
- 2.Qa1#
- 1...Ba4
- 2.Re4#
- 2.d4#
- 1...Be4
- 2.Rxe4#
- 2.d4#
- 1...Bf5
- 2.d4#
- 1...Bg6
- 2.d4#
- 1...Rxh4!
- threat
- 1.Qc4?
- threat
- 2.Bd6#
- 1...Rxc5
- 2.Qxc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Sf5
- 2.Sg6#
- 1...bxc4!
- threat
- 1.Qxc2?
- threat
- 2.Re4#
- 2.Qe4#
- 1...Rxc5
- 2.Re4#
- 2.Qxc5#
- 1...Rxe7
- 2.Qe4#
- 1...Rc3
- 2.Re4#
- 1...Rd3
- 2.Re4#
- 1...Re3!
- threat
- 1.Rxh4?
- Keys
- 1.Rg4!
- threat
- 2.Bd4#
- 2.Bd6#
- 2.d4#
- 1...Rxc5
- 2.d4#
- 1...Bxh7
- 2.d4#
- 1...Rd3
- 2.Re4#
- 1...Rc6
- 2.Sxc6#
- 2.Bd4#
- 2.d4#
- 1...Rd7
- 2.Sc6#
- 1...Bb1
- 2.d4#
- 1...Bd1
- 2.Re4#
- 2.d4#
- 1...Bb3
- 2.Re4#
- 2.d4#
- 1...Bd3
- 2.Qa1#
- 1...Ba4
- 2.Re4#
- 2.d4#
- 1...Be4
- 2.Rxe4#
- 2.d4#
- 1...Bf5
- 2.d4#
- 1...Bg6
- 2.d4#
- 1...Sf3
- 2.Bd6#
- 1...Sf5
- 2.Sg6#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- R(c);S_CUTB(a)::R1(E)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);N_GUARD,P_PINB(F)::R1(E)
- B(a);N_GUARD,P_PINB(F)::R1(E),XB(a)
- S(d);N_GUARD,SBLOCK,S_CUTB(a)::S(G)
- Tries
- Try
- R(E);XS(d)
- Threat
- DUALS(3)
- Vars
- R(h);XB(F)::P(C)
- B(a);P_PINB(F),XB(H)::P(C)
- R(c);S_CUTB(a)::R1(E)
- R(h);N_GUARD::S(G)
- B(a);P_PINB(F)::P(C)
- B(a);P_PINB(F),S_CUTR(c)::QAB(B)
- Refutation
- R(c);XR(E)
- Try
- Q(B);
- Threat
- B(F)
- Vars
- R(h);OGATE,XB(F)::QAR2(B),XR(h)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- S(d);N_GUARD,SBLOCK,S_CUTB(a)::S(G)
- Refutation
- P(e);XQ(B)
- Try
- Q(B);XB(a)
- Threat
- DUALS(2)
- Vars
- R(h);XS(G)::QAR1(B)
- R(c);P_PINQ(B)::R1(E)
- R(c);::R1(E)
- Refutation
- R(c);
- Try
- Actual
- R(E);
- Threat
- DUALS(3)
- Vars
- R(h);XB(F)::P(C)
- B(a);P_PINB(F),XB(H)::P(C)
- R(c);S_CUTB(a)::R1(E)
- R(h);N_GUARD::S(G)
- B(a);P_PINB(F)::P(C)
- B(a);P_PINB(F),S_CUTR(c)::QAB(B)
- S(d);::B(F)
- S(d);N_GUARD,SBLOCK,S_CUTB(a)::S(G)
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).