MESON Chess Problem Database
Problem Display
PID: 175262 (2bN1n2/4BR2/pP5r/P2k2nq/Q1N1pP2/P2pKp2/2rP4/8 w - - 0 1)
Berlin, Dieter
Die Schwalbe, 1981
#2
11 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxb6
- 2.Sxb6#
- 1...Rc6
- 2.Qxc6#
- 1...Rh7
- 2.Qc6#
- 1...Rh8
- 2.Qc6#
- 1...Bf5
- 2.Rxf5#
- 1...Be6
- 2.Qc6#
- 1...Bb7
- 2.Rf5#
- 1...Sge6
- 2.Qc6#
- 1...Sfe6
- 2.Rf5#
- 2.Qc6#
- 1...Sg6
- 2.Qc6#
- 1...Rxb6
- Tries
- 1.Se5?
- threat
- 2.Qd4#
- 1...Rc4
- 2.Qxc4#
- 1...Sge6
- 2.Qxe4#
- 1...Sfe6!
- threat
- 1.Sd6?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qc6#
- 2.Qd4#
- 1...Rc4
- 2.Qxc4#
- 1...Sfe6
- 2.Rf5#
- 1...Sge6!
- threat
- 1.Se5?
- Keys
- 1.Sb2!
- threat
- 2.Qd4#
- 1...Rc4
- 2.Qxc4#
- 1...Sge6
- 2.Qxe4#
- 1...Sfe6
- 2.Rf5#
- threat
- 1.Sb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(i);XP(H)::S(E),XR(i)
- R(i);N_GUARD::QAB1(D),XR(i)
- R(i);N_GUARD::QAB1(D)
- B(j);N_GUARD::R(J),XB(j)
- B(j);S_CUTR(i)::QAB1(D)
- B(j);N_GUARD::R(J)
- S(f);S_CUTR(i)::QAB1(D)
- S(k);S_CUTR(i)::QAB1(D)
- Tries
- Try
- S(E);
- Threat
- QAR1(D)
- Vars
- R(a);N_GUARD::QAB1(D),XR(a)
- S(f);N_GUARD::QAB1(D),XP(d)
- Refutation
- S(k);
- Try
- S(E);
- Threat
- QAR1(D)
- Vars
- R(a);N_GUARD::QAB1(D),XR(a)
- S(k);S_CUTB(j)::R(J)
- Refutation
- S(f);
- Try
- Actual
- S(E);
- Threat
- QAR1(D)
- Vars
- R(a);N_GUARD::QAB1(D),XR(a)
- S(f);N_GUARD::QAB1(D),XP(d)
- S(k);S_CUTB(j)::R(J)
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).