MESON Chess Problem Database
Problem Display
PID: 143340 (q6R/1BP1P3/2R4Q/6p1/1p5r/6b1/5P2/5KBk w - - 0 1)
Lipton, Michael
The Problemist, 2011
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Qa1+
- 2.Rc1#
- 1...Qa2
- 2.Rc4#
- 1...Qa3
- 2.Rc3#
- 1...Qa5
- 2.Rc5#
- 1...Qa6+
- 2.Rxa6#
- 1...Qd8
- 2.Rd6#
- 1...Qf8
- 2.Rf6#
- 1...Qg8
- 2.Re6#
- 1...Qxh8
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Ra6#
- 2.Rb6#
- 2.Rd6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 1...Rxh6
- 2.Rcxh6#
- 1...Qa1+
- Tries
- 1.Bxa8?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Ra6#
- 2.Rb6#
- 2.Rd6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 1...Bd6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Ra6#
- 2.Rb6#
- 2.Rxd6#
- 1...Bh2!
- threat
- 1.Rxa8?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rca6#
- 2.Rb6#
- 2.Rd6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 1...Rxh6
- 2.Rd6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 2.Rxh6#
- 1...Bd6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rca6#
- 2.Rb6#
- 2.Rxd6#
- 1...Bh2!
- threat
- 1.Qh5?
- threat
- 2.Qf3#
- 1...Qa1+
- 2.Rc1#
- 1...Qa6+
- 2.Rxa6#
- 1...Qa3
- 2.Rc3#
- 1...Qf8
- 2.Rf6#
- 1...g4
- 2.Qd5#
- 1...Rxh5!
- threat
- 1.Qh7?
- threat
- 2.Qe4#
- 1...Qa1+
- 2.Rc1#
- 1...Qa6+
- 2.Rxa6#
- 1...Qxh8
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Ra6#
- 2.Rb6#
- 2.Rd6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 1...Rxh7
- 2.Rh6#
- 1...Qa3
- 2.Rc3#
- 1...Qf8
- 2.Rf6#
- 1...Bh2!
- threat
- 1.Bxa8?
- Keys
- 1.Qxg5!
- threat
- 2.Qd5#
- 1...Qa1+
- 2.Rc1#
- 1...Qa6+
- 2.Rxa6#
- 1...Qxh8
- 2.Rh6#
- 1...Bh2
- 2.Qg2#
- 1...Qa2
- 2.Rc4#
- 1...Qa3
- 2.Rc3#
- 1...Qa5
- 2.Rc5#
- 1...Qd8
- 2.Rd6#
- 1...Qf8
- 2.Rf6#
- 1...Qg8
- 2.Re6#
- 1...Be5
- 2.Qg2#
- threat
- 1.Qxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(f);CHECK,N_GUARD::B(F)+R(D)
- Q(f);N_GUARD,SBLOCK::B(F)+R(D)
- Q(f);N_GUARD::B(F)+R(D)
- Q(f);CHECK,N_GUARD::B(F)+R(D),XQ(f)
- Q(f);N_GUARD,P_PINP(C)::B(F)+R(D)
- R(d);OGATE,XQ(E)::B(F)+R(D),DCHECK,XR(d)
- Tries
- Try
- B(F);XQ(f)
- Threat
- DUALS(11)
- Refutation
- B(b);N_SPINR(d)
- Try
- R(I);XQ(f)
- Threat
- DUALS(11)
- Refutation
- B(b);N_SPINR(d)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- Q(f);CHECK,N_GUARD::B(F)+R(D)
- Q(f);CHECK,N_GUARD::B(F)+R(D),XQ(f)
- Q(f);N_GUARD::B(F)+R(D)
- Q(f);N_GUARD,P_PINP(C)::B(F)+R(D)
- P(e);OGATE::QAB(E)
- Refutation
- R(d);XQ(E)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- Q(f);CHECK,N_GUARD::B(F)+R(D)
- Q(f);CHECK,N_GUARD::B(F)+R(D),XQ(f)
- R(d);XQ(E)::B(F)+R(D),DCHECK
- Q(f);N_GUARD::B(F)+R(D)
- Q(f);N_GUARD,P_PINP(C)::B(F)+R(D)
- Refutation
- B(b);N_SPINR(d)
- Try
- Actual
- Q(E);XP(e)
- Threat
- QAB(E)
- Vars
- Q(f);CHECK,N_GUARD::B(F)+R(D)
- Q(f);CHECK,N_GUARD::B(F)+R(D),XQ(f)
- Q(f);N_GUARD,N_SPINR(d),XR(I)::B(F)+R(D)
- B(b);N_SPINR(d),OGATE::QAB1(E)
- Q(f);N_GUARD,SBLOCK::B(F)+R(D)
- Q(f);N_GUARD::B(F)+R(D)
- Q(f);N_GUARD,P_PINP(C)::B(F)+R(D)
- B(b);OGATE::QAB1(E)
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).