MESON Chess Problem Database
Problem Display
PID: 44889 (1nBNQ3/R6K/NP3p1p/k4r1r/PR1B4/1p3q2/8/8 w - - 0 1)
Touw Hian Bwee
1st Prize, Schach-Echo, 1977
#2
10 + 8
| 3750 | FIDE Album (1977-1979) | 1984 |
| 6352 | A Collection of Chess Problems by Touw Hian Bwee | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sb7#
- 1...Qe2
- 2.Sb7#
- 1...Qg4
- 2.Sb7#
- 1...Qb7+
- 2.Sxb7#
- 1...Qf1
- 2.Sb7#
- 1...Qf2
- 2.Sb7#
- 1...Qc3
- 2.Sb7#
- 1...Qd3
- 2.Sb7#
- 1...Qe3
- 2.Sb7#
- 1...Qg3
- 2.Sb7#
- 1...Qh3
- 2.Sb7#
- 1...Qf4
- 2.Sb7#
- 1...Rd5
- 2.Sb7#
- 1...Sc6
- 2.Sb7#
- 1...Qd1
- Tries
- 1.Sc5+?
- 1...Sa6
- 2.Rb5#
- 2.Qb5#
- 1...Kxb4!
- 1...Sa6
- 1.Bc3?
- threat
- 2.Sxb8#
- 1...Qb7+
- 2.Sxb7#
- 1...Qxc3
- 2.Sb7#
- 1...Sxa6
- 2.Rxa6#
- 1...Qe2
- 2.Sb7#
- 2.Rxb3#
- 1...Qa8
- 2.Rxb3#
- 1...Qf1
- 2.Sb7#
- 2.Rxb3#
- 1...Qd3
- 2.Sb7#
- 1...Sc6
- 2.Sb7#
- 1...Sd7
- 2.Sc5#
- 2.Sc7#
- 2.Sb8#
- 1...Rb5!
- threat
- 1.Bc5?
- threat
- 2.Sxb8#
- 2.Qb5#
- 1...Qb7+
- 2.Sxb7#
- 1...Sxa6
- 2.Rxa6#
- 2.Qb5#
- 1...Qe2
- 2.Sb7#
- 1...Qc6
- 2.Sxb8#
- 1...Qa8
- 2.Qb5#
- 1...Qf1
- 2.Sb7#
- 1...Qd3
- 2.Sb7#
- 1...Sc6
- 2.Sb7#
- 1...Sd7
- 2.Sc7#
- 2.Sb8#
- 1...Rxc5!
- threat
- 1.Rxb3?
- threat
- 2.Sxb8#
- 1...Qb7+
- 2.Sxb7#
- 1...Qxb3
- 2.Sb7#
- 1...Sxa6
- 2.Rxa6#
- 1...Sd7
- 2.Sb4#
- 2.Sc5#
- 2.Sc7#
- 2.Sb8#
- 1...Qe2
- 2.Sb7#
- 2.Bc3#
- 1...Qa8
- 2.Bc3#
- 1...Qf1
- 2.Sb7#
- 2.Bc3#
- 1...Qd3
- 2.Sb7#
- 1...Sc6!
- threat
- 1.Rc4?
- threat
- 2.Sxb8#
- 1...Qb7+
- 2.Sxb7#
- 1...Sxa6
- 2.Rxa6#
- 1...Qa8
- 2.Qe1#
- 1...Sc6
- 2.Sb7#
- 1...Sd7
- 2.Sb4#
- 2.Sc7#
- 2.Sb8#
- 1...Rc5!
- threat
- 1.Rb5+?
- 1...Kxa4
- 2.Sc5#
- 2.Sxb8#
- 1...Rxb5!
- 1...Kxa4
- 1.Qe4?
- threat
- 2.Sb7#
- 1...Sxa6
- 2.Sc6#
- 1...Qxe4!
- threat
- 1.Sc5+?
- Keys
- 1.Qe1!
- threat
- 2.Sxb8#
- 1...Qb7+
- 2.Sxb7#
- 1...Sxa6
- 2.Rxa6#
- 1...Qe2
- 2.Sb7#
- 1...Qa8
- 2.Rc4#
- 1...Qf1
- 2.Sb7#
- 1...Qc3
- 2.Sb7#
- 1...Qd3
- 2.Sb7#
- 1...Sc6
- 2.Sb7#
- 1...Sd7
- 2.Sc5#
- 2.Sc7#
- 2.Sb8#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(b);N_GUARD::S(I)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);N_GUARD,SBLOCK::S(I)
- R(d);S_CUTQ(b)::S(I)
- S(h);S_CUTQ(b)::S(I)
- Tries
- Try
- S(D);CHECK
- Refutation
- K(c);S_FLIGHT,XR(B)
- Try
- B(C);
- Threat
- R(F)+S(D),XS(h)
- Vars
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);N_GUARD,XB(C)::S(I)
- S(h);OGATE,P_SPINS(h),XS(D)::R1(F),XS(h)
- Q(b);N_GUARD::B(C)+R(B),XP(a)
- Q(b);N_GUARD::S(I)
- S(h);S_CUTQ(b)::S(I)
- Refutation
- R(d);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);N_GUARD::S(I)
- Q(b);::R(F)+S(D),XS(h)
- Q(b);::QAR1(J)
- S(h);S_CUTQ(b)::S(I)
- Refutation
- R(d);XB(C)
- Try
- R(B);XP(a)
- Threat
- R(F)+S(D),XS(h)
- Vars
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);N_GUARD,XR(B)::S(I)
- S(h);OGATE,P_SPINS(h),XS(D)::R1(F),XS(h)
- Q(b);N_GUARD::B(C)
- Q(b);N_GUARD::S(I)
- Refutation
- S(h);
- Try
- R(B);
- Threat
- R(F)+S(D),XS(h)
- Vars
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- S(h);OGATE,P_SPINS(h),XS(D)::R1(F),XS(h)
- Q(b);N_GUARD::QAB(J)
- S(h);S_CUTQ(b)::S(I)
- Refutation
- R(d);
- Try
- R(B);CHECK
- Refutation
- R(d);XR(B)
- Try
- Q(J);
- Threat
- S(I)
- Vars
- S(h);N_GUARD,P_SPINS(h),XS(D)::S(I)
- Refutation
- Q(b);XQ(J)
- Try
- Actual
- Q(J);
- Threat
- R(F)+S(D),XS(h)
- Vars
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- S(h);OGATE,P_SPINS(h),XS(D)::R1(F),XS(h)
- Q(b);N_GUARD::S(I)
- Q(b);N_GUARD::QAB(J)+R(B)
- S(h);S_CUTQ(b)::S(I)
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).