MESON Chess Problem Database
Problem Display
PID: 51501 (2Q3b1/pp6/8/6rp/3k4/1PNN1p2/3K2nB/8 w - - 0 1)
King-Farlow, Charles P
The Guardian, 1962
#2
6 + 8
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.Qc5#
- 1...Rg4
- 2.Be5#
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qc4#
- 1...Re5
- 2.Bxe5#
- 1...Rg6
- 2.Be5#
- 2.Qc5#
- 1...Rg7
- 2.Be5#
- 2.Qc5#
- 1...Bc4
- 2.Qxc4#
- 1...Bd5
- 2.Qc5#
- 1...Bh7
- 2.Qc4#
- 1...Rg3
- Tries
- 1.Bg1+?
- 1...Se3
- 2.Bxe3#
- 1...f2!
- 1...Se3
- 1.Qg4+?
- 1...Rxg4
- 2.Be5#
- 1...Sf4
- 2.Qxf4#
- 1...hxg4!
- 1...Rxg4
- 1.Qf5?
- threat
- 2.Sb5#
- 2.Be5#
- 2.Qe4#
- 1...Bxb3
- 2.Qe4#
- 1...Rg3
- 2.Sb5#
- 2.Qe4#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Rg4
- 2.Sb5#
- 2.Be5#
- 2.Qc5#
- 2.Qe5#
- 2.Qf6#
- 1...Bc4
- 2.Be5#
- 2.Qe4#
- 1...Bd5
- 2.Sb5#
- 2.Be5#
- 1...Bh7
- 2.Sb5#
- 2.Be5#
- 1...Sf4
- 2.Sb5#
- 2.Qe4#
- 2.Qxf4#
- 1...a6
- 2.Be5#
- 2.Qe4#
- 1...b5
- 2.Sxb5#
- 2.Be5#
- 2.Qe4#
- 1...Rxf5!
- threat
- 1.Qe6?
- threat
- 2.Qe4#
- 1...Rg4
- 2.Sb5#
- 2.Be5#
- 2.Qe5#
- 2.Qf6#
- 1...Re5
- 2.Bxe5#
- 2.Qxe5#
- 1...Bh7
- 2.Qc4#
- 1...Bxe6!
- threat
- 1.Qd7+?
- 1...Rd5
- 2.Be5#
- 2.Qa4#
- 1...Bd5!
- 1...Rd5
- 1.Qc6?
- threat
- 2.Qe4#
- 1...Rg4
- 2.Sb5#
- 2.Be5#
- 2.Qc5#
- 2.Qf6#
- 1...Rd5
- 2.Qa4#
- 2.Qc4#
- 1...Re5
- 2.Bxe5#
- 1...Bd5
- 2.Qc5#
- 1...Bh7
- 2.Qa4#
- 2.Qc4#
- 1...bxc6!
- threat
- 1.Qd8+?
- 1...Rd5
- 2.Be5#
- 1...Bd5!
- 1...Rd5
- 1.Qe8?
- threat
- 2.Qe4#
- 1...Rg4
- 2.Be5#
- 2.Qe5#
- 1...Re5
- 2.Bxe5#
- 2.Qxe5#
- 1...Bd5
- 2.Sb5#
- 1...Bh7
- 2.Qa4#
- 1...Be6!
- threat
- 1.Bg1+?
- Keys
- 1.Qxb7!
- threat
- 2.Qe4#
- 1...Rg4
- 2.Sb5#
- 2.Be5#
- 2.Qxa7#
- 1...Rd5
- 2.Qb4#
- 1...Re5
- 2.Bxe5#
- 1...Bd5
- 2.Qxa7#
- 1...Bh7
- 2.Qb4#
- threat
- 1.Qxb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(d);N_GUARD::QAB1(F)
- R(d);N_GUARD::QAB1(F),XR(d)
- R(d);S_CUTB(h)::QAR1(F)
- R(d);N_GUARD::B(B),XR(d)
- B(h);N_GUARD::QAR1(F),XB(h)
- B(h);S_CUTR(d)::QAB1(F)
- B(h);N_GUARD::QAR1(F)
- Tries
- Try
- B(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::B(B),XS(a)
- Refutation
- P(b);P_SPINP(b)
- Try
- Q(F);CHECK
- Vars
- R(d);XQ(F)::B(B)
- S(a);N_GUARD,P_SPINS(a)::QAR2(F),XS(a)
- Refutation
- P(e);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- B(h);XP(C)::QAR1(F)
- Refutation
- R(d);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- B(h);N_GUARD::QAR1(F)
- Refutation
- B(h);XQ(F)
- Try
- Q(F);CHECK
- Refutation
- B(h);P_SPINB(h)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- R(d);N_GUARD::B(B),XR(d)
- B(h);S_CUTR(d)::QAB1(F)
- Refutation
- P(g);XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(d);P_SPINR(d)::B(B)
- Refutation
- B(h);P_SPINB(h)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- B(h);SBLOCK,S_CUTR(d)::S(D)
- B(h);N_GUARD::QAR(F)
- Refutation
- B(h);
- Try
- Actual
- Q(F);XP(g)
- Threat
- QAR1(F)
- Vars
- R(d);S_CUTB(h)::QAR2(F)
- R(d);N_GUARD::B(B),XR(d)
- B(h);S_CUTR(d)::QAB(F),XP(f)
- B(h);N_GUARD::QAR2(F)
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).