MESON Chess Problem Database
Problem Display
PID: 78930 (4nB2/1b5K/1p5Q/3N1R2/p1pkp2p/1r4R1/Nn1pB1p1/3q2r1 w - - 0 1)
Touw Hian Bwee
Al Hamishmar, 1964
#2
8 + 14
| 6352 | A Collection of Chess Problems by Touw Hian Bwee | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qxb6#
- 1...Rc3
- 2.Qxb6#
- 1...Rd3
- 2.Qxb6#
- 1...Re3
- 2.Qxe3#
- 2.Qxb6#
- 1...Rf3
- 2.Qxb6#
- 1...Rxg3
- 2.Qxb6#
- 1...Rb4
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Sd3
- 2.Qe3#
- 1...Sf6+
- 2.Qxf6#
- 1...Sc7
- 2.Qg7#
- 2.Qf6#
- 1...Sg7
- 2.Qxg7#
- 2.Qf6#
- 1...c3
- 2.Qe3#
- 1...e3
- 2.Rg4#
- 2.Qf4#
- 2.Qxh4#
- 1...b5
- 2.Qb6#
- 1...Ra3
- Tries
- 1.Sab4?
- threat
- 2.Qxb6#
- 1...Sf6+
- 2.Qxf6#
- 1...Rxb4
- 2.Qe3#
- 1...e3
- 2.Rg4#
- 2.Qf4#
- 2.Qxh4#
- 1...Bc6
- 2.Sxc6#
- 1...Sd3
- 2.Qe3#
- 1...b5
- 2.Qb6#
- 1...Sd6!
- threat
- 1.Sdc3?
- threat
- 2.Qe3#
- 1...Sf6+
- 2.Qxf6#
- 1...Qxe2
- 2.Sxe2#
- 1...Rxc3
- 2.Qxb6#
- 1...e3
- 2.Qxe3#
- 1...hxg3!
- threat
- 1.Sdb4?
- threat
- 2.Qxb6#
- 1...Sf6+
- 2.Qxf6#
- 1...Rxb4
- 2.Qe3#
- 1...Bc6
- 2.Sxc6#
- 1...Sd3
- 2.Qe3#
- 1...Sd6
- 2.Bg7#
- 2.Qg7#
- 2.Qf6#
- 1...b5
- 2.Bc5#
- 2.Qb6#
- 1...e3!
- threat
- 1.Sf4?
- threat
- 2.Se6#
- 1...Sf6+
- 2.Qxf6#
- 1...Bd5
- 2.Rxd5#
- 1...Bc8
- 2.Rd5#
- 1...Sc7
- 2.Bg7#
- 2.Qg7#
- 2.Qf6#
- 1...Sg7
- 2.Bxg7#
- 2.Qxg7#
- 2.Qf6#
- 1...e3!
- threat
- 1.Sxb6?
- threat
- 2.Bc5#
- 1...Sf6+
- 2.Qxf6#
- 1...Rb5
- 2.Qe3#
- 1...Bd5
- 2.Rxd5#
- 1...Sd3
- 2.Qe3#
- 1...Sd6
- 2.Bg7#
- 2.Qg7#
- 2.Qf6#
- 1...e3!
- threat
- 1.Sc7?
- threat
- 2.Se6#
- 1...Sf6+
- 2.Qxf6#
- 1...Sxc7
- 2.Bg7#
- 2.Qg7#
- 2.Qf6#
- 1...Bd5
- 2.Rxd5#
- 1...Bc8
- 2.Rd5#
- 1...Sg7
- 2.Bxg7#
- 2.Qxg7#
- 2.Qf6#
- 1...e3!
- threat
- 1.Bb4?
- threat
- 2.Qxb6#
- 1...Sf6+
- 2.Qxf6#
- 1...Rxb4
- 2.Qe3#
- 1...e3
- 2.Rg4#
- 2.Qf4#
- 2.Qxh4#
- 1...Sd3
- 2.Qe3#
- 1...Sd6
- 2.Qg7#
- 2.Qf6#
- 1...b5
- 2.Qb6#
- 1...Bc6!
- threat
- 1.Rxb3?
- threat
- 2.Qe3#
- 2.Qxb6#
- 1...Sf6+
- 2.Qxf6#
- 1...Qxe2
- 2.Qxb6#
- 1...Sd6
- 2.Qe3#
- 1...e3
- 2.Qxe3#
- 2.Qf4#
- 2.Qxh4#
- 1...Bc6
- 2.Qe3#
- 1...Sd3
- 2.Qe3#
- 1...b5
- 2.Qe3#
- 2.Qb6#
- 1...Qxb3!
- threat
- 1.Rc3?
- threat
- 2.Qe3#
- 1...Sf6+
- 2.Qxf6#
- 1...Rxc3
- 2.Qxb6#
- 1...e3
- 2.Qxe3#
- 2.Qf4#
- 2.Qxh4#
- 1...Qxe2!
- threat
- 1.Rd3+?
- 1...Rxd3
- 2.Qxb6#
- 1...Sxd3
- 2.Qe3#
- 1...exd3
- 2.Qe3#
- 2.Qf4#
- 2.Qxh4#
- 1...cxd3!
- 1...Rxd3
- 1.Qg7+?
- 1...Sf6+
- 2.Qxf6#
- 1...Sxg7!
- 1...Sf6+
- 1.Sab4?
- Keys
- 1.Sac3!
- threat
- 2.Qe3#
- 1...Sf6+
- 2.Qxf6#
- 1...Qxe2
- 2.Sxe2#
- 1...Rxc3
- 2.Qxb6#
- 1...e3
- 2.Rg4#
- 2.Qxe3#
- 2.Qf4#
- 2.Qxh4#
- threat
- 1.Sac3!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(f);N_GUARD::QAB(F),XP(l)
- R(f);N_GUARD,XR(C)::QAB(F),XP(l)
- R(f);N_GUARD::QAB1(F)
- S(c);S_CUTR(f)::QAB1(F)
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- P(h);S_CUTR(f)::QAB1(F)
- P(l);S_CUTR(f)::QAB(F)
- Tries
- Try
- S(A);
- Threat
- QAB(F),XP(l)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- R(f);N_GUARD,XS(A)::QAB1(F)
- B(m);N_GUARD::S(A),XB(m)
- S(c);S_CUTR(f)::QAB1(F)
- P(l);::QAB(F)
- Refutation
- S(n);
- Try
- S(D);
- Threat
- QAB1(F)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- Q(a);XB(B)::S(D),XQ(a)
- R(f);N_GUARD,XS(D)::QAB(F),XP(l)
- P(j);::QAB1(F),XP(j)
- Refutation
- P(k);XR(C)
- Try
- S(D);
- Threat
- QAB(F),XP(l)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- R(f);N_GUARD,XS(D)::QAB1(F)
- B(m);N_GUARD::S(D),XB(m)
- S(c);S_CUTR(f)::QAB1(F)
- Refutation
- P(j);
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- B(m);N_GUARD::R1(E),XB(m)
- B(m);N_GUARD::R1(E)
- Refutation
- P(j);
- Try
- S(D);XP(l)
- Threat
- B(H)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- R(f);N_GUARD::QAB1(F)
- B(m);N_GUARD::R1(E),XB(m)
- S(c);S_CUTR(f)::QAB1(F)
- Refutation
- P(j);
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- B(m);N_GUARD::R1(E),XB(m)
- B(m);N_GUARD::R1(E)
- Refutation
- P(j);
- Try
- B(H);
- Threat
- QAB(F),XP(l)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- R(f);N_GUARD,XB(H)::QAB1(F)
- S(c);S_CUTR(f)::QAB1(F)
- P(l);::QAB(F)
- Refutation
- B(m);
- Try
- R(C);XR(f)
- Threat
- DUALS(2)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- Q(a);XB(B)::QAB(F),XP(l)
- S(n);::QAB1(F)
- B(m);::QAB1(F)
- S(c);::QAB1(F)
- Refutation
- Q(a);XR(C)
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- R(f);N_GUARD,XR(C)::QAB(F),XP(l)
- Refutation
- Q(a);XB(B)
- Try
- R(C);CHECK
- Vars
- R(f);XR(C)::QAB(F),XP(l)
- S(c);XR(C)::QAB1(F)
- Refutation
- P(h);XR(C)
- Try
- Q(F);CHECK
- Vars
- S(n);CHECK,N_GUARD,P_SPINS(n)::QAB(F),XS(n)
- Refutation
- S(n);XQ(F)
- Try
- Actual
- S(A);
- Threat
- QAB1(F)
- Vars
- S(n);CHECK,N_GUARD::QAB(F),XS(n)
- Q(a);XB(B)::S(A),XQ(a)
- R(f);N_GUARD,XS(A)::QAB(F),XP(l)
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).