MESON Chess Problem Database
Problem Display
PID: 186663 (4n3/4qrp1/1N1pn2N/1r2p2R/1p2Bk2/5pp1/3K3p/4QRbb w - - 0 1)
Lin, Tien Ling
Chess, 1960
#2
7 + 15
SOLUTION
- SOUND
- Sets
- 1...Rd5+
- 2.Sxd5#
- 1...Rf5
- 2.Rxf5#
- 1...Be3+
- 2.Qxe3#
- 1...Bc5
- 2.Sd5#
- 1...Sc5
- 2.Sd5#
- 1...Sg5
- 2.Rh4#
- 1...Sf6
- 2.Rf5#
- 1...f2
- 2.Qe3#
- 1...g2
- 2.Rxf3#
- 1...Rd5+
- Tries
- 1.Bd5?
- threat
- 2.Qe4#
- 1...Rxd5+
- 2.Sxd5#
- 1...Be3+
- 2.Qxe3#
- 1...Sg5
- 2.Rh4#
- 1...Sf6
- 2.Rf5#
- 1...f2
- 2.Qe3#
- 1...g2
- 2.Rxf3#
- 1...e4
- 2.Qxe4#
- 1...Sc5!
- threat
- 1.Bb7?
- threat
- 2.Qe4#
- 1...Rd5+
- 2.Sxd5#
- 1...Be3+
- 2.Qxe3#
- 1...Sc5
- 2.Sd5#
- 1...Sg5
- 2.Rh4#
- 1...Sf6
- 2.Rf5#
- 1...f2
- 2.Qe3#
- 1...g2
- 2.Rxf3#
- 1...e4
- 2.Qxe4#
- 1...d5
- 2.Qxe5#
- 1...Qxb7!
- threat
- 1.Ba8?
- threat
- 2.Qe4#
- 1...Rd5+
- 2.Sxd5#
- 1...Be3+
- 2.Qxe3#
- 1...Sc5
- 2.Sd5#
- 1...Sg5
- 2.Rh4#
- 1...Sf6
- 2.Rf5#
- 1...f2
- 2.Qe3#
- 1...g2
- 2.Rxf3#
- 1...e4
- 2.Qxe4#
- 1...d5
- 2.Qxe5#
- 1...Qb7!
- threat
- 1.Bd5?
- Keys
- 1.Bc6!
- threat
- 2.Qe4#
- 1...Rd5+
- 2.Sxd5#
- 1...Be3+
- 2.Qxe3#
- 1...Sc5
- 2.Sd5#
- 1...Sg5
- 2.Rh4#
- 1...Sf6
- 2.Rf5#
- 1...f2
- 2.Qe3#
- 1...g2
- 2.Rxf3#
- 1...e4
- 2.Qxe4#
- 1...d5
- 2.Qxe5#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(h);CHECK,N_GUARD::S(F),XR(h)
- R(m);N_GUARD::R1(E),XR(m)
- B(a);CHECK,N_GUARD::QAB1(A),XB(a)
- B(a);S_CUTR(h)::S(F)
- S(k);S_CUTR(h)::S(F)
- S(k);SBLOCK,S_CUTQ(l)::R(E)
- S(o);S_CUTR(m)::R1(E)
- P(d);S_CUTB(a)::QAB1(A)
- P(e);S_CUTB(b)::R1(B),XP(d)
- Tries
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- R(h);CHECK,XB(D)::S(F),XR(h)
- B(a);CHECK,N_GUARD::QAB1(A),XB(a)
- S(k);SBLOCK,S_CUTQ(l)::R(E)
- S(o);S_CUTR(m)::R1(E)
- P(d);S_CUTB(a)::QAB1(A)
- P(e);S_CUTB(b)::R1(B),XP(d)
- P(i);::QAR1(A),XP(i)
- Refutation
- S(k);
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- R(h);CHECK,N_GUARD::S(F),XR(h)
- B(a);CHECK,N_GUARD::QAB1(A),XB(a)
- S(k);S_CUTR(h)::S(F)
- S(k);SBLOCK,S_CUTQ(l)::R(E)
- S(o);S_CUTR(m)::R1(E)
- P(d);S_CUTB(a)::QAB1(A)
- P(e);S_CUTB(b)::R1(B),XP(d)
- P(i);::QAR1(A),XP(i)
- P(j);N_GUARD,S_CUTR(h)::QAB1(A),XP(i)
- Refutation
- Q(l);XB(D)
- Try
- B(D);
- Threat
- QAR1(A)
- Vars
- R(h);CHECK,N_GUARD::S(F),XR(h)
- B(a);CHECK,N_GUARD::QAB1(A),XB(a)
- S(k);S_CUTR(h)::S(F)
- S(k);SBLOCK,S_CUTQ(l)::R(E)
- S(o);S_CUTR(m)::R1(E)
- P(d);S_CUTB(a)::QAB1(A)
- P(e);S_CUTB(b)::R1(B),XP(d)
- P(i);::QAR1(A),XP(i)
- P(j);N_GUARD,S_CUTR(h)::QAB1(A),XP(i)
- Refutation
- Q(l);
- Try
- Actual
- B(D);
- Threat
- QAR1(A)
- Vars
- R(h);CHECK,N_GUARD::S(F),XR(h)
- B(a);CHECK,N_GUARD::QAB1(A),XB(a)
- S(k);S_CUTR(h)::S(F)
- S(k);SBLOCK,S_CUTQ(l)::R(E)
- S(o);S_CUTR(m)::R1(E)
- P(d);S_CUTB(a)::QAB1(A)
- P(e);S_CUTB(b)::R1(B),XP(d)
- P(i);::QAR1(A),XP(i)
- P(j);N_GUARD,S_CUTR(h)::QAB1(A),XP(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).