MESON Chess Problem Database
Problem Display
PID: 194447 (4R3/2Q5/3N2KB/1p4nB/3p2N1/n2k3r/1Pb3Rp/8 w - - 0 1)
Helweg, Steffen ('Cyrano')
Die Schwalbe, 1979
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Qxc2#
- 1...Sf3
- 2.Sf2#
- 1...Se4
- 2.Se5#
- 1...Se6
- 2.Sf2#
- 2.Se5#
- 2.Rd2#
- 1...Sf7
- 2.Sf2#
- 2.Rd2#
- 1...Sh7
- 2.Sf2#
- 2.Se5#
- 2.Rd2#
- 1...Sb1
- Tries
- 1.Bxg5?
- threat
- 2.Sf2#
- 2.Se5#
- 2.Rd2#
- 1...h1S
- 2.Se5#
- 2.Rd2#
- 1...Rf3
- 2.Se5#
- 2.Rd2#
- 1...Sb1
- 2.Sf2#
- 2.Se5#
- 2.Qxc2#
- 1...Sc4
- 2.Sf2#
- 1...Re3!
- threat
- 1.Rge2?
- threat
- 2.Sf2#
- 2.Se5#
- 1...Rxh5
- 2.Sf2#
- 1...Re3
- 2.Sf2#
- 1...Se4
- 2.Se5#
- 1...h1S
- 2.Se5#
- 1...Sc4
- 2.Sf2#
- 1...Sf3
- 2.Sf2#
- 1...Sf7
- 2.Sf2#
- 2.Rd2#
- 1...Rf3!
- threat
- 1.Ree2?
- threat
- 2.Sf2#
- 2.Se5#
- 2.Rd2#
- 1...Rxh5
- 2.Se5#
- 2.Rd2#
- 1...h1S
- 2.Se5#
- 2.Rd2#
- 1...Re3
- 2.Sf2#
- 2.Rd2#
- 1...Rf3
- 2.Se5#
- 2.Rd2#
- 1...Sb1
- 2.Sf2#
- 2.Se5#
- 2.Qxc2#
- 1...Sc4
- 2.Sf2#
- 1...Se4
- 2.Se5#
- 1...Sf7
- 2.Sf2#
- 2.Rd2#
- 1...Sf3!
- threat
- 1.Re3+?
- 1...dxe3
- 2.Qc3#
- 1...Rxe3!
- 1...dxe3
- 1.Re4?
- threat
- 2.Se5#
- 1...Sf3
- 2.Sf2#
- 1...Sf7
- 2.Sf2#
- 2.Rd2#
- 1...Sc4!
- threat
- 1.Qa5?
- threat
- 2.Sf2#
- 2.Rd2#
- 2.Qd2#
- 1...h1S
- 2.Rd2#
- 2.Qd2#
- 1...Rf3
- 2.Rd2#
- 2.Qd2#
- 1...Bb1
- 2.Rd2#
- 2.Qd2#
- 2.Qxa3#
- 1...Bd1
- 2.Rd2#
- 2.Qd2#
- 1...Bb3
- 2.Rd2#
- 2.Qd2#
- 1...Ba4
- 2.Rd2#
- 2.Qd2#
- 1...Sb1
- 2.Sf2#
- 2.Qxb5#
- 1...Sc4
- 2.Sf2#
- 1...Sf3
- 2.Sf2#
- 1...Se4
- 2.Se5#
- 1...b4!
- threat
- 1.Bxg5?
- Keys
- 1.Se4!
- threat
- 2.Rd2#
- 1...Sxe4
- 2.Se5#
- 1...Se6
- 2.Sgf2#
- 1...Sb1
- 2.Qxc2#
- 1...Sc4
- 2.Sc5#
- 1...Sf3
- 2.Sef2#
- threat
- 1.Se4!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAB1(H),XB(a)
- S(h);::S(C)
- Tries
- Try
- B(G);XS(h)
- Threat
- DUALS(3)
- Vars
- S(c);::S(C)
- Refutation
- R(e);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(e);XB(D)::S(C)
- R(e);::S(C)
- S(h);::S(C)
- P(b);::S(C)
- S(c);::S(C)
- Refutation
- R(e);
- Try
- R(I);
- Threat
- DUALS(3)
- Vars
- S(c);::S(C)
- S(h);::S(C)
- Refutation
- S(h);
- Try
- R(I);CHECK
- Vars
- P(f);XR(I)::QAR1(H)
- Refutation
- R(e);XR(I)
- Try
- R(I);
- Threat
- S(C)
- Vars
- S(h);::S(C)
- Refutation
- S(c);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(c);::S(C)
- S(h);::S(C)
- Refutation
- P(g);
- Try
- Actual
- S(E);
- Threat
- R1(B)
- Vars
- S(h);SBLOCK,XS(E)::S(C)
- S(h);::S(C)
- S(c);N_GUARD::QAB1(H),XB(a)
- S(c);SBLOCK::S(E)
- S(h);::S(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).