MESON Chess Problem Database
Problem Display
PID: 2142 (8/4nP1b/1Q2B1kP/6B1/6K1/3N2p1/8/q4r2 w - - 0 1)
Brown, Theodore Morris
Source?, 0000
#2
7 + 6
| 1679 | American Chess Nuts | 1868 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Sxe5#
- 1...Qb1
- 2.Se5#
- 1...Qc1
- 2.Se5#
- 1...Qa2
- 2.Se5#
- 1...Qa3
- 2.Se5#
- 1...Qa6
- 2.Se5#
- 1...Qa7
- 2.Se5#
- 1...Qa8
- 2.Se5#
- 1...Rb1
- 2.Sf4#
- 2.f8S#
- 1...Rc1
- 2.Sf4#
- 2.f8S#
- 1...Rd1
- 2.Sf4#
- 2.f8S#
- 1...Re1
- 2.Sf4#
- 2.f8S#
- 1...Rg1
- 2.Sf4#
- 2.f8S#
- 1...Rh1
- 2.Sf4#
- 2.f8S#
- 1...Rf4+
- 2.Sxf4#
- 1...Rxf7
- 2.Bf5#
- 1...Sf5
- 2.f8S#
- 1...Qe5
- Tries
- 1.Ba2+?
- 1...Qf6
- 2.Se5#
- 2.f8S#
- 1...Rf6
- 2.Sf4#
- 2.f8S#
- 1...Sc6!
- 1...Qf6
- 1.Bb3+?
- 1...Qf6
- 2.Se5#
- 2.f8S#
- 1...Rf6
- 2.Sf4#
- 2.f8S#
- 1...Sc6!
- 1...Qf6
- 1.Bc4+?
- 1...Qf6
- 2.Se5#
- 2.f8S#
- 1...Rf6
- 2.Sf4#
- 2.f8S#
- 1...Sc6!
- 1...Qf6
- 1.Bd5+?
- 1...Qf6
- 2.Se5#
- 2.f8S#
- 1...Rf6
- 2.Sf4#
- 2.f8S#
- 1...Sc6!
- 1...Qf6
- 1.Ba2+?
- Keys
- 1.Qb1!
- threat
- 2.Sf4#
- 2.Se5#
- 1...Qd4+
- 2.Sf4#
- 1...Qa4+
- 2.Sf4#
- 1...Rf4+
- 2.Sxf4#
- 1...Qxb1
- 2.Se5#
- 1...Rxb1
- 2.Sf4#
- 2.f8S#
- 1...Qe5
- 2.Sf4#
- 2.Sxe5#
- 1...Rf5
- 2.Sf4#
- 1...Sf5
- 2.f8S#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD::S(A)
- R(b);CHECK,N_GUARD::S(A),XR(b)
- R(b);SBLOCK,XP(G)::QAR(D)+B(E),DCHECK
- S(e);S_CUTR(b)::P=S
- Tries
- Try
- B(E);CHECK
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Refutation
- S(e);P_SPINS(e)
- Try
- Actual
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK::QAB(D)+S(A),DCHECK
- R(b);CHECK::QAB(D)+S(A),DCHECK,XR(b)
- Q(a);XQ(D)::S(A)
- R(b);::S(A)
- S(e);S_CUTR(b)::P=S
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).