MESON Chess Problem Database
Problem Display
PID: 174177 (5N1n/4K3/5N2/Bbr1k3/7Q/5R2/8/2b1r2n w - - 0 1)
Buchner, Richard
Arbeiter-Jugend, 1927
#2
6 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qe4#
- 1...Rf1
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Re3
- 2.Qf4#
- 1...Re4
- 2.Qxe4#
- 1...Rc3
- 2.Bxc3#
- 1...Rc6
- 2.S8d7#
- 1...Rc7+
- 2.Bxc7#
- 1...Bb2
- 2.Qf4#
- 1...Ba3
- 2.Qf4#
- 1...Be3
- 2.Qe4#
- 1...Bf4
- 2.Qxf4#
- 1...Bf1
- 2.S8d7#
- 1...Be2
- 2.S8d7#
- 2.Qe4#
- 1...Bd3
- 2.S8d7#
- 1...Bc4
- 2.S8d7#
- 2.Bc3#
- 1...Ba6
- 2.S8d7#
- 1...Bc6
- 2.Bc7#
- 1...Bd7
- 2.S8xd7#
- 1...Sg6+
- 2.Sxg6#
- 1...Sf7
- 2.Sg6#
- 1...Rd1
- Tries
- 1.Re3+?
- 1...Kf5
- 2.Qg4#
- 1...Bxe3
- 2.Qe4#
- 1...Rxe3!
- 1...Kf5
- 1.Qxe1+?
- 1...Kd4
- 2.Qe4#
- 1...Be3
- 2.Qxe3#
- 1...Be2!
- 1...Kd4
- 1.Qc4?
- threat
- 2.Sg4#
- 2.Bc3#
- 2.Qxc5#
- 1...Rc7+
- 2.Bxc7#
- 1...Sg6+
- 2.Sxg6#
- 1...Bxc4
- 2.Bc3#
- 1...Bf4
- 2.Qxf4#
- 2.Qxc5#
- 1...Rd1
- 2.Sg4#
- 2.Qe4#
- 1...Rg1
- 2.Bc3#
- 2.Qe4#
- 2.Qxc5#
- 1...Re3
- 2.Sg4#
- 2.Qf4#
- 2.Qxc5#
- 1...Re4
- 2.Qxe4#
- 2.Qxc5#
- 1...Rd5
- 2.Sg4#
- 2.Qxd5#
- 1...Rc6
- 2.Sg4#
- 2.S6d7#
- 2.S8d7#
- 2.Bc3#
- 2.Qd5#
- 1...Rc8
- 2.Sg4#
- 2.Bc3#
- 2.Qd5#
- 1...Bb2
- 2.Sg4#
- 2.Qf4#
- 2.Qxc5#
- 1...Bd2
- 2.Sg4#
- 2.Qxc5#
- 1...Ba3
- 2.Sg4#
- 2.Bc3#
- 2.Qf4#
- 1...Be3
- 2.Sg4#
- 2.Qe4#
- 1...Bg5
- 2.Bc3#
- 2.Qxc5#
- 1...Bc6
- 2.Sg4#
- 2.Bc3#
- 2.Bc7#
- 1...Bd7
- 2.S6xd7#
- 2.S8xd7#
- 2.Bc3#
- 2.Qxc5#
- 1...Sf2
- 2.Bc3#
- 2.Qxc5#
- 1...Rxc4!
- threat
- 1.Qg4?
- threat
- 2.Rf5#
- 1...Rc7+
- 2.Bxc7#
- 1...Sg6+
- 2.Sxg6#
- 1...Re4
- 2.Qxe4#
- 1...Bf4
- 2.Qxf4#
- 1...Rf1
- 2.Qe4#
- 1...Bd3
- 2.S8d7#
- 1...Bd7
- 2.S8xd7#
- 1...Sg3!
- threat
- 1.Re3+?
- Keys
- 1.Qb4!
- threat
- 2.Qxc5#
- 1...Rc7+
- 2.Bxc7#
- 1...Sg6+
- 2.Sxg6#
- 1...Rc4
- 2.Qd6#
- 1...Bc4
- 2.Qc3#
- 1...Rd1
- 2.Qe4#
- 1...Rc2
- 2.Qd6#
- 1...Rc3
- 2.Qxc3#
- 2.Qd6#
- 1...Rd5
- 2.Sg4#
- 1...Rc6
- 2.S8d7#
- 1...Rc8
- 2.Qd6#
- 1...Ba3
- 2.Qf4#
- 1...Be3
- 2.Qe4#
- 1...Bc6
- 2.Bc7#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::QAR1(B)
- R(b);S_CUTB(a)::QAB1(B)
- R(b);N_GUARD::QAR1(B),XR(b)
- R(e);N_GUARD::B(C),XR(e)
- R(e);S_CUTB(d)::S(F)
- R(e);CHECK,N_GUARD::B(C),XR(e)
- B(a);N_GUARD::QAB1(B)
- B(a);S_CUTR(b)::QAR1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(d);N_GUARD::S(F)
- B(d);S_CUTR(e)::B(C)
- B(d);N_GUARD::S(F),XB(d)
- S(g);CHECK,N_GUARD::S(F),XS(g)
- S(g);N_GUARD::S(F)
- Tries
- Try
- R(A);CHECK
- Vars
- K(f);P-FLIGHT,P_PINR(A)::QAB1(B)
- B(a);XR(A)::QAR1(B)
- Refutation
- R(b);XR(A)
- Try
- Q(B);CHECK,XR(b)
- Vars
- K(f);S_FLIGHT::QAR1(B)
- B(a);N_GUARD,P_SPINB(a)::QAR2(B),XB(a)
- Refutation
- B(d);P_SPINB(d)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(e);CHECK,N_GUARD::B(C),XR(e)
- S(g);CHECK,N_GUARD::S(F),XS(g)
- B(d);XQ(B)::B(C)
- Refutation
- R(e);XQ(B)
- Try
- Q(B);
- Threat
- R1(A)
- Vars
- R(e);CHECK,N_GUARD::B(C),XR(e)
- S(g);CHECK,N_GUARD::S(F),XS(g)
- R(b);N_GUARD::QAR1(B),XR(b)
- B(a);N_GUARD::QAB1(B),XB(a)
- R(b);N_GUARD::QAR1(B)
- B(d);N_GUARD::S(F)
- B(d);N_GUARD::S(F),XB(d)
- Refutation
- S(c);
- Try
- Actual
- Q(B);
- Threat
- QAR2(B),XR(e)
- Vars
- R(e);CHECK,N_GUARD::B(C),XR(e)
- S(g);CHECK,N_GUARD::S(F),XS(g)
- R(e);OGATE::QAB1(B)
- B(d);S_CUTR(e)::QAB(B)
- R(b);N_GUARD::QAR1(B)
- R(e);SBLOCK::S(D)
- R(e);S_CUTB(d)::S(F)
- B(a);N_GUARD::QAB1(B)
- B(a);S_CUTR(b)::QAR1(B)
- B(d);S_CUTR(e)::B(C)
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).