MESON Chess Problem Database
Problem Display
PID: 12309 (qN6/4R3/6K1/pB6/Nk2n3/R2Q4/p7/n7 w - - 0 1)
Touw Hian Bwee
1st Prize, Schweizerische Arbeiter Schachzeitung, 1977
#2
7 + 6
| 3750 | FIDE Album (1977-1979) | 1984 |
| 6352 | A Collection of Chess Problems by Touw Hian Bwee | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Sa6#
- 1...Qc6+
- 2.Sxc6#
- 1...Qa6+
- 2.Sxa6#
- 1...Qa7
- 2.Sc6#
- 1...Qxb8
- 2.Rxe4#
- 1...Sc2
- 2.Rb3#
- 2.Qb3#
- 1...Sb3
- 2.Rxb3#
- 2.Qxb3#
- 1...Qd5
- Tries
- 1.Bc4?
- 1...Qc6+
- 2.Sxc6#
- 1...Qa6+
- 2.Sxa6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc3
- 2.Qxc3#
- 1...Qb7
- 2.Rxb7#
- 1...Qd5
- 2.Sa6#
- 1...Qa7
- 2.Sc6#
- 1...Sc2
- 2.Qb3#
- 1...Sd2
- 2.Qc3#
- 1...Sf2
- 2.Qc3#
- 1...Sg3
- 2.Qc3#
- 1...Sc5
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 1...Sd6
- 2.Qc3#
- 1...Sf6
- 2.Qc3#
- 1...Qxb8!
- 1...Qc6+
- 1.Ba6?
- 1...Qc6+
- 2.Sxc6#
- 1...Qxa6+
- 2.Sxa6#
- 1...Qxb8
- 2.Rxe4#
- 1...Sb3
- 2.Qxb3#
- 1...Sc3
- 2.Qxc3#
- 2.Qd6#
- 1...Qb7
- 2.Rxb7#
- 1...Qa7
- 2.Sc6#
- 1...Sc2
- 2.Qb3#
- 1...Sd2
- 2.Qc3#
- 2.Qd6#
- 1...Sf2
- 2.Qc3#
- 2.Qd6#
- 1...Sg3
- 2.Qc3#
- 2.Qd6#
- 1...Sc5
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 2.Qd6#
- 1...Sd6
- 2.Qc3#
- 2.Qxd6#
- 1...Sf6
- 2.Qc3#
- 2.Qd6#
- 1...Qd5!
- 1...Qc6+
- 1.Bc6?
- threat
- 2.Rxe4#
- 1...Qxc6+
- 2.Sxc6#
- 1...Sb3
- 2.Rxb3#
- 2.Qxb3#
- 1...Sc3
- 2.Qxc3#
- 1...Qa6
- 2.Sxa6#
- 1...Sc2
- 2.Rb3#
- 2.Qb3#
- 1...Sd2
- 2.Qc3#
- 1...Sf2
- 2.Qc3#
- 1...Sg3
- 2.Qc3#
- 1...Sc5
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 1...Sd6
- 2.Qc3#
- 1...Sf6
- 2.Qc3#
- 1...Qa7!
- threat
- 1.Bd7?
- 1...Qc6+
- 2.Sxc6#
- 1...Qa6+
- 2.Sxa6#
- 1...Qxb8
- 2.Rxe4#
- 1...Sb3
- 2.Rxb3#
- 2.Qxb3#
- 1...Sc3
- 2.Qxc3#
- 1...Qd5
- 2.Sa6#
- 1...Qa7
- 2.Sc6#
- 1...Sc2
- 2.Rb3#
- 2.Qb3#
- 1...Sd2
- 2.Qc3#
- 1...Sf2
- 2.Qc3#
- 1...Sg3
- 2.Qc3#
- 1...Sc5
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 1...Sd6
- 2.Qc3#
- 1...Sf6
- 2.Qc3#
- 1...Qb7!
- 1...Qc6+
- 1.Qd4+?
- 1...Kxa3
- 2.Qb2#
- 1...Kxb5!
- 1...Kxa3
- 1.Bc4?
- Keys
- 1.Be8!
- 1...Qc6+
- 2.Sxc6#
- 1...Qa6+
- 2.Sxa6#
- 1...Qxb8
- 2.Rxe4#
- 1...Sb3
- 2.Rxb3#
- 2.Qxb3#
- 1...Sc3
- 2.Qxc3#
- 1...Qb7
- 2.Rxb7#
- 1...Qd5
- 2.Sa6#
- 1...Qa7
- 2.Sc6#
- 1...Sc2
- 2.Rb3#
- 2.Qb3#
- 1...Sd2
- 2.Qc3#
- 1...Sf2
- 2.Qc3#
- 1...Sg3
- 2.Qc3#
- 1...Sc5
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 1...Sd6
- 2.Qc3#
- 1...Sf6
- 2.Qc3#
- 1...Qc6+
- 1.Be8!
This is a version
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- Q(f);N_GUARD::S(G)
- Q(f);CHECK,N_GUARD::S(G),XQ(f)
- Q(f);N_GUARD,XS(G)::R(F),XS(d)
- Tries
- Try
- B(D);
- Vars
- Q(f);CHECK,N_GUARD::S(G),XQ(f)
- S(a);N_GUARD::QAR1(B),XS(a)
- S(d);N_GUARD::QAB1(B),XS(d)
- Q(f);N_GUARD::R(F),XQ(f)
- Q(f);N_GUARD::S(G)
- S(a);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAB1(B)
- Refutation
- Q(f);XS(G)
- Try
- B(D);
- Vars
- Q(f);CHECK,N_GUARD::S(G),XQ(f)
- Q(f);CHECK,XB(D)::S(G),XQ(f)
- Q(f);N_GUARD,XS(G)::R(F),XS(d)
- S(a);N_GUARD::QAR1(B),XS(a)
- Q(f);N_GUARD::R(F),XQ(f)
- Q(f);N_GUARD::S(G)
- S(a);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAB1(B)
- Refutation
- Q(f);
- Try
- B(D);
- Threat
- R(F),XS(d)
- Vars
- Q(f);CHECK,XB(D)::S(G),XQ(f)
- S(d);N_GUARD::QAB1(B),XS(d)
- Q(f);N_GUARD,P_PINB(D)::S(G),XQ(f)
- S(d);N_GUARD::QAB1(B)
- Refutation
- Q(f);
- Try
- B(D);
- Vars
- Q(f);CHECK,N_GUARD::S(G),XQ(f)
- Q(f);N_GUARD,XS(G)::R(F),XS(d)
- S(d);N_GUARD::QAB1(B),XS(d)
- Q(f);N_GUARD::S(G)
- S(d);N_GUARD::QAB1(B)
- Refutation
- Q(f);
- Try
- Q(B);CHECK
- Vars
- K(c);S_FLIGHT,XR(A)::QAB1(B)
- Refutation
- K(c);P-FLIGHT,XB(D)
- Try
- Actual
- B(D);
- Vars
- Q(f);CHECK,N_GUARD::S(G),XQ(f)
- Q(f);N_GUARD,XS(G)::R(F),XS(d)
- S(d);N_GUARD::QAB1(B),XS(d)
- Q(f);N_GUARD::R(F),XQ(f)
- Q(f);N_GUARD::S(G)
- S(d);N_GUARD::QAB1(B)
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).