MESON Chess Problem Database
Problem Display
PID: 207754 (5b2/1r4p1/2Q5/rp6/PppkpP2/8/1Nn3B1/2BN3K w - - 0 1)
van Gool, Johann Christoffel
The Problemist, 1984
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Re7
- 2.Qd6#
- 1...Bc5
- 2.Qxe4#
- 1...Bd6
- 2.Qxd6#
- 1...Sa1
- 2.Be3#
- 1...Se1
- 2.Be3#
- 1...Sa3
- 2.Be3#
- 1...Se3
- 2.Bxe3#
- 1...e3
- 2.Qd5#
- 1...bxa4
- 2.Qxc4#
- 1...Re7
- Tries
- 1.Bxe4?
- threat
- 2.Qd5#
- 1...bxa4
- 2.Qxc4#
- 1...Se3
- 2.Bxe3#
- 1...Rd7!
- threat
- 1.Qe6?
- threat
- 2.Qe5#
- 1...bxa4
- 2.Qxc4#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Kc5!
- threat
- 1.axb5?
- threat
- 2.Qxc4#
- 1...Bc5
- 2.Qxe4#
- 1...Sa3
- 2.Be3#
- 1...Se3
- 2.Bxe3#
- 1...c3
- 2.Qc4#
- 1...Rc7!
- threat
- 1.Bxe4?
- Keys
- 1.Sd3!
- threat
- 2.Qxe4#
- 1...Kxd3
- 2.Qxe4#
- 1...cxd3
- 2.Bb2#
- 1...exd3
- 2.Qd5#
- 1...Re7
- 2.Qd6#
- 1...e3
- 2.Qe4#
- 2.Qd5#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(h);S_CUTB(j)::QAR2(H)
- B(j);SBLOCK::QAR1(H),XP(e)
- B(j);N_GUARD::QAR2(H),XB(j)
- S(a);N_GUARD::B(A)
- S(a);N_GUARD::B(A),XS(a)
- P(e);::QAR1(H)
- P(g);N_GUARD,XP(F)::QAR1(H),XP(c)
- Tries
- Try
- B(E);XP(e)
- Threat
- QAR1(H)
- Vars
- P(g);N_GUARD,XP(F)::QAR1(H),XP(c)
- S(a);N_GUARD::B(A),XS(a)
- Refutation
- R(h);
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- P(g);N_GUARD,XP(F)::QAR1(H),XP(c)
- R(h);S_CUTB(j)::QAR2(H)
- B(j);N_GUARD::QAR2(H),XB(j)
- Refutation
- K(d);S_FLIGHT
- Try
- P(F);XP(g)
- Threat
- QAR1(H),XP(c)
- Vars
- B(j);SBLOCK::QAR1(H),XP(e)
- S(a);N_GUARD::B(A)
- S(a);N_GUARD::B(A),XS(a)
- P(c);::QAR1(H)
- Refutation
- R(h);
- Try
- Actual
- S(D);
- Threat
- QAR1(H),XP(e)
- Vars
- K(d);P-FLIGHT,XS(D)::QAB1(H),XP(e)
- P(c);N_GUARD,SBLOCK,XS(D)::B(A)
- P(e);SBLOCK,XS(D)::QAR1(H)
- R(h);S_CUTB(j)::QAR2(H)
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).