MESON Chess Problem Database
Problem Display
PID: 136441 (5NR1/1n4n1/p7/Rb3kpr/3PrBNp/7K/8/1BQ5 w - - 0 1)
Shire, David J
The Problemist Supplement, 2010
#2
9 + 9
SOLUTION
- SOUND
- Tries
- 1.Bd2?
- threat
- 2.Qf1#
- 1...Sxa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se6!
- threat
- 1.Bh2?
- threat
- 2.Qf1#
- 1...Sxa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se6!
- threat
- 1.Be3?
- threat
- 2.Qf1#
- 1...Sxa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se6!
- threat
- 1.Be5?
- threat
- 2.Se3#
- 1...Bf1+
- 2.Qxf1#
- 1...Bd3!
- threat
- 1.Bd6?
- threat
- 2.Qf1#
- 1...Sxa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se6!
- threat
- 1.Bc7?
- threat
- 2.Qf1#
- 1...Sxa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se6!
- threat
- 1.Bb8?
- threat
- 2.Qf1#
- 1...Sxa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se6!
- threat
- 1.Rxb5+?
- 1...Sc5
- 2.Rxc5#
- 1...axb5!
- 1...Sc5
- 1.Qc6?
- threat
- 2.Qxe4#
- 2.Qf6#
- 1...Kxf4
- 2.Qxe4#
- 1...gxf4
- 2.Qd5#
- 2.Qf6#
- 2.Qg6#
- 1...Se6
- 2.Qxe4#
- 1...Rh6
- 2.Qxe4#
- 1...Sc5
- 2.Qf6#
- 1...Se8
- 2.Qxe4#
- 1...Sd6!
- threat
- 1.Qc7?
- threat
- 2.Qe5#
- 2.Qf7#
- 1...gxf4
- 2.Qe5#
- 1...Rh6
- 2.Qe5#
- 1...Sd8
- 2.Qe5#
- 1...Se8
- 2.Qe5#
- 1...Sd6!
- threat
- 1.Bd2?
- Keys
- 1.Bxg5!
- threat
- 2.Qf4#
- 1...Rxg5
- 2.Qf1#
- 1...Se6
- 2.Se3#
- threat
- 1.Bxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- B(E);
- Threat
- QAR(B)
- Vars
- S(h);N_GUARD,N_SPINB(c),XR(G)::QAR(B)
- S(h);N_GUARD,N_SPINB(c)::QAR(B),XS(h)
- Refutation
- S(i);
- Try
- B(E);
- Threat
- QAR(B)
- Vars
- S(h);N_GUARD,N_SPINB(c),XR(G)::QAR(B)
- S(h);N_GUARD,N_SPINB(c)::QAR(B),XS(h)
- Refutation
- S(i);
- Try
- B(E);
- Threat
- QAR(B)
- Vars
- S(h);N_GUARD,N_SPINB(c),XR(G)::QAR(B)
- S(h);N_GUARD,N_SPINB(c)::QAR(B),XS(h)
- Refutation
- S(i);
- Try
- B(E);N_PINB(c)
- Threat
- S(F)
- Vars
- B(c);CHECK,N_GUARD::QAR(B),XB(c)
- Refutation
- B(c);N_SPINR(a)
- Try
- B(E);
- Threat
- QAR(B)
- Vars
- S(h);N_GUARD,N_SPINB(c),XR(G)::QAR(B)
- S(h);N_GUARD,N_SPINB(c)::QAR(B),XS(h)
- Refutation
- S(i);
- Try
- B(E);
- Threat
- QAR(B)
- Vars
- S(h);N_GUARD,N_SPINB(c),XR(G)::QAR(B)
- S(h);N_GUARD,N_SPINB(c)::QAR(B),XS(h)
- Refutation
- S(i);
- Try
- B(E);
- Threat
- QAR(B)
- Vars
- S(h);N_GUARD,N_SPINB(c),XR(G)::QAR(B)
- S(h);N_GUARD,N_SPINB(c)::QAR(B),XS(h)
- Refutation
- S(i);
- Try
- R(G);CHECK,XB(c)
- Vars
- S(h);N_GUARD,P_SPINS(h)::R(G),XS(h)
- Refutation
- P(g);XR(G)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINB(c),N_SPINR(a),P-FLIGHT,XB(E)::QAR1(B),XR(a)
- S(i);::QAB1(B),XR(a)
- R(f);::QAB1(B),XR(a)
- S(h);N_SPINB(c)::QAR1(B)
- Refutation
- S(h);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(e);XB(E)::QAR1(B)
- R(f);::QAR1(B)
- S(h);::QAR1(B)
- S(i);::QAR1(B)
- Refutation
- S(h);
- Try
- Actual
- B(E);XP(e)
- Threat
- QAR1(B)
- Vars
- R(f);SBLOCK,XB(E)::QAR(B)
- S(i);::S(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).