MESON Chess Problem Database
Problem Display
PID: 142440 (R6q/3P1PB1/5R2/8/r3p3/1b6/6n1/kBK2Q2 w - - 0 1)
Lipton, Michael
Sp. HM., The Problemist, 2011
#2
8 + 6
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rfa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Qh2
- 2.Rf4#
- 1...Qh3
- 2.Rf3#
- 1...Qh5
- 2.Rf5#
- 1...Qh6+
- 2.Rxh6#
- 1...Qxa8
- 2.Ra6#
- 1...Qb8
- 2.Rd6#
- 1...Qc8+
- 2.Rc6#
- 1...Qe8
- 2.Re6#
- 1...Ra6
- 2.Rfxa6#
- 1...Ra7
- 2.Ra6#
- 1...Rxa8
- 2.Ra6#
- 1...Qh1
- Tries
- 1.Bxh8?
- threat
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rfa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Rxa8
- 2.Ra6#
- 1...Ra6
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rfxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Be6
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rxe6#
- 2.Rg6#
- 2.Rh6#
- 1...Sf4
- 2.Rxf4#
- 2.Rf5#
- 2.Rfa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Ba2!
- threat
- 1.Rxa4+?
- 1...Ba2
- 2.Rxa2#
- 1...Bxa4!
- 1...Ba2
- 1.Qe2?
- threat
- 2.Qb2#
- 1...Qh1+
- 2.Rf1#
- 1...Qh6+
- 2.Rxh6#
- 1...Qc8+
- 2.Rc6#
- 1...Bc2!
- threat
- 1.Qxg2?
- threat
- 2.Qb2#
- 1...Qh1+
- 2.Rf1#
- 1...Qh6+
- 2.Rxh6#
- 1...Qc8+
- 2.Rc6#
- 1...Qh2
- 2.Rf4#
- 1...Bc2!
- threat
- 1.Qd3?
- threat
- 2.Qc3#
- 2.Qd4#
- 1...Qh1+
- 2.Rf1#
- 1...Qh6+
- 2.Rxh6#
- 1...Qc8+
- 2.Rc6#
- 1...Qxa8
- 2.Ra6#
- 2.Qc3#
- 1...Qh3
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rfa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Ba2
- 2.Qc3#
- 1...exd3!
- threat
- 1.Qc4?
- threat
- 2.Qc3#
- 2.Qd4#
- 1...Qh1+
- 2.Rf1#
- 1...Qh6+
- 2.Rxh6#
- 1...Qxa8
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 2.Qc3#
- 1...Qh3
- 2.Rf3#
- 1...Qc8
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rfa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Ba2
- 2.Qc3#
- 1...Bxc4!
- threat
- 1.Qe1?
- threat
- 2.Qc3#
- 1...Qh6+
- 2.Rxh6#
- 1...Qc8+
- 2.Rc6#
- 1...Qh1
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rfa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Qh3
- 2.Rf3#
- 1...Sxe1!
- threat
- 1.Qf2?
- threat
- 2.Qd4#
- 2.Qb2#
- 1...Qh6+
- 2.Rxh6#
- 1...Qc8+
- 2.Rc6#
- 1...Qxa8
- 2.Ra6#
- 2.Qb2#
- 1...Ba2
- 2.Qb2#
- 1...Qh3
- 2.Rf3#
- 2.Qb2#
- 1...Bc2
- 2.Qd4#
- 1...Se3
- 2.Qb2#
- 1...e3
- 2.Qb2#
- 1...Qh1+!
- threat
- 1.Bxh8?
- Keys
- 1.Qb5!
- threat
- 2.Qe5#
- 1...Qh1+
- 2.Rf1#
- 1...Qh6+
- 2.Rxh6#
- 1...Qc8+
- 2.Rc6#
- 1...Qxa8
- 2.Ra6#
- 1...Qh2
- 2.Rf4#
- 1...Qh3
- 2.Rf3#
- 1...Qh5
- 2.Rf5#
- 1...Qb8
- 2.Rd6#
- 1...Qe8
- 2.Re6#
- 1...Ba2
- 2.Qb2#
- 1...Bd5
- 2.Qb2#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(f);N_GUARD::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Q(f);N_GUARD,N_SPINR(d),XR(H)::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- R(d);::B(G)+R(D),DCHECK,XR(d)
- R(d);::B(G)+R(D),DCHECK
- R(d);N_SPINR(d),XR(H)::B(G)+R(D),DCHECK
- Tries
- Try
- B(G);XQ(f)
- Threat
- DUALS(11)
- Vars
- R(d);N_SPINR(d),XR(H)::B(G)+R(D),DCHECK
- Refutation
- B(c);N_SPINR(d)
- Try
- R(H);CHECK,XR(d)
- Vars
- B(c);N_GUARD,P_SPINB(c)::R1(H),XB(c)
- Refutation
- B(c);XR(H)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Refutation
- B(c);
- Try
- Q(C);XS(b)
- Threat
- QAB1(C)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Q(f);N_GUARD::B(G)+R(D)
- Refutation
- B(c);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- B(c);N_SPINR(d)::QAB(C)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Q(f);N_GUARD::B(G)+R(D)
- B(c);N_SPINR(d)::QAB(C)
- Refutation
- B(c);XQ(C)
- Try
- Q(C);
- Threat
- QAB(C)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- Q(f);N_GUARD::B(G)+R(D)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- B(c);N_SPINR(d)::QAB1(C)
- B(c);::QAB(C)
- S(b);::QAB1(C)
- P(e);::QAB1(C)
- Refutation
- Q(f);CHECK
- Try
- Actual
- Q(C);
- Threat
- QAB(C)
- Vars
- Q(f);CHECK,N_GUARD::B(G)+R(D)
- Q(f);CHECK,N_GUARD::B(G)+R(D),XQ(f)
- Q(f);N_GUARD,N_SPINR(d),XR(H)::B(G)+R(D)
- Q(f);N_GUARD::B(G)+R(D)
- B(c);N_SPINR(d),OGATE::QAB1(C)
- B(c);OGATE::QAB1(C)
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).