MESON Chess Problem Database
Problem Display
PID: 24951 (6B1/6BK/1pN5/1p1R1P2/p1k2p2/q2n4/8/5Q2 w - - 0 1)
Mansfield, Comins
Vida Rotaria-Brasil, 1957
#2
7 + 7
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kb3
- 2.Rc5#
- 1...Qc1
- 2.Qxd3#
- 1...Qb2
- 2.Qxd3#
- 1...Qb4
- 2.Qxd3#
- 1...Qc5
- 2.Qxd3#
- 1...Qd6
- 2.Qxd3#
- 1...Qe7
- 2.Qxd3#
- 1...Qf8
- 2.Qxd3#
- 1...Qa1
- 2.Qxd3#
- 1...Qa2
- 2.Qxd3#
- 1...Qc3
- 2.Re5#
- 1...b4
- 2.Ra5#
- 1...Kb3
- Tries
- 1.Ba1?
- threat
- 2.Re5#
- 1...Kb3
- 2.Rc5#
- 1...Qxa1
- 2.Qxd3#
- 1...Qb2
- 2.Qxd3#
- 1...Qc5
- 2.Rd4#
- 2.Qxd3#
- 1...Qd6
- 2.Qxd3#
- 1...Qf8
- 2.Qxd3#
- 1...Qe7+!
- threat
- 1.Bd4?
- threat
- 2.Rc5#
- 2.Re5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Kb3
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qd6
- 2.Rc5#
- 2.Rxd6#
- 1...Qf8
- 2.Rc5#
- 1...b4
- 2.Ra5#
- 2.Rc5#
- 2.Re5#
- 1...Qe7+!
- threat
- 1.Qe2?
- 1...Kb3
- 2.Rxd3#
- 2.Rxb5#
- 2.Rc5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qb3
- 2.Qe4#
- 1...Qc1
- 2.Qxd3#
- 2.Qa2#
- 1...Qb2
- 2.Qxd3#
- 1...Qb4
- 2.Qxd3#
- 1...Qc5
- 2.Qxd3#
- 2.Qa2#
- 2.Qc2#
- 1...Qd6
- 2.Qxd3#
- 2.Qa2#
- 2.Qc2#
- 1...Qe7
- 2.Qxd3#
- 2.Qa2#
- 2.Qc2#
- 1...Qf8
- 2.Qxd3#
- 2.Qa2#
- 2.Qc2#
- 1...Qa1
- 2.Qxd3#
- 1...Qa2
- 2.Qxd3#
- 2.Qxa2#
- 1...Qc3
- 2.Re5#
- 1...b4
- 2.Ra5#
- 1...f3!
- 1...Kb3
- 1.Qxf4+?
- 1...Kb3
- 2.Rc5#
- 1...Sxf4!
- 1...Kb3
- 1.Ba1?
- Keys
- 1.Qf3!
- 1...Kb3
- 2.Rc5#
- 1...Qb3
- 2.Qe4#
- 1...Qc1
- 2.Qxd3#
- 1...Qb2
- 2.Qxd3#
- 1...Qb4
- 2.Qxd3#
- 1...Qc5
- 2.Qxd3#
- 1...Qd6
- 2.Qxd3#
- 1...Qe7
- 2.Qxd3#
- 1...Qf8
- 2.Qxd3#
- 1...Qa1
- 2.Qxd3#
- 1...Qa2
- 2.Qxd3#
- 1...Qc3
- 2.Re5#
- 1...Sc1
- 2.Re5#
- 1...Se1
- 2.Re5#
- 1...Sb2
- 2.Re5#
- 1...Sf2
- 2.Re5#
- 1...Sb4
- 2.Se5#
- 1...Sc5
- 2.Rd4#
- 1...Se5
- 2.Rxe5#
- 1...b4
- 2.Ra5#
- 1...Kb3
- 1.Qf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- K(d);N_SPINS(b),S_FLIGHT::B(G)+R(B)
- Q(a);N_GUARD::QAB1(A),XS(b)
- Q(a);N_GUARD,P_PINB(E)::QAB1(A),XS(b)
- Q(a);SBLOCK::B(G)+R(B)
- P(f);OGATE::B(G)+R(B)
- Tries
- Try
- B(E);
- Threat
- B(G)+R(B)
- Vars
- K(d);N_SPINS(b),S_FLIGHT::B(G)+R(B)
- Q(a);N_GUARD,XB(E)::QAB1(A),XS(b)
- Q(a);N_GUARD::QAB1(A),XS(b)
- Refutation
- Q(a);CHECK
- Try
- B(E);
- Threat
- DUALS(5)
- Vars
- K(d);N_SPINS(b),S_FLIGHT::B(G)+R(B)
- Q(a);::B(G)+R(B),DCHECK,XQ(a)
- Q(a);::B(G)+R(B),DCHECK
- Refutation
- Q(a);CHECK
- Try
- Q(A);
- Vars
- Q(a);SBLOCK::QAR2(A)
- Q(a);N_GUARD::QAB1(A),XS(b)
- Q(a);SBLOCK::B(G)+R(B)
- P(f);OGATE::B(G)+R(B)
- Refutation
- P(e);
- Try
- Q(A);CHECK,N_PINS(b),XP(e)
- Vars
- K(d);S_FLIGHT::B(G)+R(B)
- Refutation
- S(b);XQ(A)
- Try
- Actual
- Q(A);N_PINS(b)
- Vars
- K(d);P_SPINS(b),S_FLIGHT::B(G)+R(B)
- Q(a);SBLOCK::QAR2(A)
- Q(a);N_GUARD::QAB1(A),XS(b)
- Q(a);N_GUARD,P_PINB(E)::QAB1(A),XS(b)
- Q(a);SBLOCK::B(G)+R(B)
- S(b);::B(G)+R(B)
- S(b);N_GUARD,SBLOCK::S(D)
- S(b);SBLOCK::B(G)+R(B),DCHECK
- S(b);::B(G)+R(B),XS(b)
- P(f);OGATE::B(G)+R(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).