MESON Chess Problem Database
Problem Display
PID: 273269 (K7/1Q3p1n/B7/B6q/pPP1P2p/r1k5/1R1R4/b3N3 w - - 0 1)
Reilly, William Henry
The Problemist, 1931
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.bxc5#
- 1...Rb3
- 2.Rbc2#
- 1...Bxb2
- 2.Rd3#
- 1...Qc5
- Tries
- 1.Qd5?
- threat
- 2.Rdc2#
- 2.Qd3#
- 2.Qd4#
- 2.b5#
- 1...Bxb2
- 2.Rd3#
- 2.Qd3#
- 1...Qd1
- 2.Qd3#
- 2.Qd4#
- 2.Qe5#
- 2.b5#
- 1...Qe2
- 2.Qd4#
- 2.Qe5#
- 2.b5#
- 1...Qf3
- 2.Rdc2#
- 2.Qd4#
- 2.Qe5#
- 2.b5#
- 1...Qe5
- 2.Rdc2#
- 2.Qd3#
- 2.Qxe5#
- 2.b5#
- 1...Rb3
- 2.Rbc2#
- 2.Rdc2#
- 2.Qd3#
- 2.Qd4#
- 1...Qxd5+!
- threat
- 1.Qc6?
- threat
- 2.b5#
- 1...Bxb2
- 2.Rd3#
- 1...Qb5
- 2.cxb5#
- 1...Qc5
- 2.bxc5#
- 1...Rb3
- 2.Rbc2#
- 1...Qxa5!
- threat
- 1.Qb6?
- threat
- 2.Rdc2#
- 2.Qe3#
- 2.Qd4#
- 1...Bxb2
- 2.Rd3#
- 2.Qe3#
- 1...Qb5
- 2.Rdc2#
- 2.Qd4#
- 1...Qd1
- 2.Qe3#
- 2.Qd4#
- 1...Qe2
- 2.Qd4#
- 1...Qf3
- 2.Rdc2#
- 2.Qd4#
- 1...Qc5
- 2.bxc5#
- 1...Qe5
- 2.Rdc2#
- 2.Qe3#
- 1...Qg5
- 2.Rdc2#
- 2.Qd4#
- 1...Qh6
- 2.Rdc2#
- 2.Qd4#
- 1...Qd5+!
- threat
- 1.Qa7?
- threat
- 2.Rdc2#
- 2.Qe3#
- 2.Qd4#
- 1...Bxb2
- 2.Rd3#
- 2.Qe3#
- 1...Qb5
- 2.Rdc2#
- 2.Qd4#
- 1...Qd1
- 2.Qe3#
- 2.Qd4#
- 1...Qe2
- 2.Qd4#
- 1...Qf3
- 2.Rdc2#
- 2.Qd4#
- 1...Qc5
- 2.bxc5#
- 1...Qe5
- 2.Rdc2#
- 2.Qe3#
- 1...Qg5
- 2.Rdc2#
- 2.Qd4#
- 1...Qh6
- 2.Rdc2#
- 2.Qd4#
- 1...Qd5+!
- threat
- 1.Qc7?
- threat
- 2.b5#
- 1...Qd5+
- 2.cxd5#
- 1...Bxb2
- 2.Rd3#
- 1...Qb5
- 2.cxb5#
- 1...Qc5
- 2.bxc5#
- 1...Rb3
- 2.Rbc2#
- 1...Qxa5!
- threat
- 1.Qd7?
- threat
- 2.Rdc2#
- 2.Qd3#
- 2.Qd4#
- 1...Bxb2
- 2.Rd3#
- 2.Qd3#
- 1...Qd1
- 2.Qd3#
- 2.Qd4#
- 1...Qe2
- 2.Qd4#
- 1...Qf3
- 2.Rdc2#
- 2.Qd4#
- 1...Qc5
- 2.Rdc2#
- 2.Qd3#
- 2.bxc5#
- 1...Qe5
- 2.Rdc2#
- 2.Qd3#
- 1...Qd5+!
- threat
- 1.Qd5?
- Keys
- 1.Qc8!
- threat
- 2.b5#
- 1...Qd5+
- 2.cxd5#
- 1...Qxa5
- 2.Qh3#
- 1...Bxb2
- 2.Rd3#
- 1...Qb5
- 2.cxb5#
- 1...Qc5
- 2.bxc5#
- 1...Rb3
- 2.Rbc2#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(f);OGATE::B(G)+P(D),XQ(f)
- R(b);SBLOCK::R1(B)
- B(a);SBLOCK,XR(B)::R1(C)
- Tries
- Try
- Q(I);
- Threat
- DUALS(4)
- Refutation
- Q(f);CHECK,XQ(I)
- Try
- Q(I);
- Threat
- B(G)+P(D)
- Vars
- B(a);SBLOCK,XR(B)::R1(C)
- Q(f);OGATE::QAR(I)+P(E),XQ(f)
- Q(f);OGATE::B(G)+P(D),XQ(f)
- R(b);SBLOCK::R1(B)
- Refutation
- Q(f);P_PINB(H),XB(G)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- Q(f);::QAB1(I)
- Q(f);OGATE::B(G)+P(D),XQ(f)
- Refutation
- Q(f);CHECK
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- Q(f);::QAB1(I)
- Q(f);OGATE::B(G)+P(D),XQ(f)
- Refutation
- Q(f);CHECK
- Try
- Q(I);
- Threat
- B(G)+P(D)
- Vars
- Q(f);CHECK,OGATE::QAR(I)+P(E),XQ(f)
- B(a);SBLOCK,XR(B)::R1(C)
- Q(f);OGATE::QAR(I)+P(E),XQ(f)
- Q(f);OGATE::B(G)+P(D),XQ(f)
- R(b);SBLOCK::R1(B)
- Refutation
- Q(f);P_PINB(H),XB(G)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- Q(f);::QAB1(I)
- Refutation
- Q(f);CHECK
- Try
- Actual
- Q(I);
- Threat
- B(G)+P(D)
- Vars
- Q(f);CHECK,OGATE::QAR(I)+P(E),XQ(f)
- Q(f);N_GUARD,P_PINB(H),XB(G)::QAR(I)
- B(a);SBLOCK,XR(B)::R1(C)
- Q(f);OGATE::QAR(I)+P(E),XQ(f)
- Q(f);OGATE::B(G)+P(D),XQ(f)
- R(b);SBLOCK::R1(B)
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).