MESON Chess Problem Database
Problem Display
PID: 2644 (b2N4/q4p2/7Q/1N1k4/3Bn3/3P2p1/4K1P1/1B6 w - - 0 1)
Reed, Oliver F
Source?, 0000
#2
8 + 6
| 1679 | American Chess Nuts | 1868 |
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Ba2#
- 1...Qb8
- 2.Ba2#
- 1...Qa2+
- 2.Bxa2#
- 1...Qb7
- 2.Ba2#
- 1...Qd7
- 2.Ba2#
- 1...Qe7
- 2.Ba2#
- 1...Bc6
- 2.Qxc6#
- 1...Sd2
- 2.Qd6#
- 1...Sf2
- 2.Qd6#
- 1...Sc5
- 2.Qd6#
- 1...Sg5
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sf6
- 2.Qg5#
- 1...f5
- 2.Qe6#
- 1...Qb6
- Tries
- 1.Qf4?
- threat
- 2.Qe5#
- 2.Qxe4#
- 2.Qf5#
- 1...Qa2+
- 2.Bxa2#
- 1...Sc3+
- 2.Sxc3#
- 1...Qb8
- 2.Ba2#
- 2.Qxe4#
- 2.Qxf7#
- 1...Qc7
- 2.Qxe4#
- 1...Qd7
- 2.Ba2#
- 2.Qe5#
- 2.Qxe4#
- 1...Qe7
- 2.Ba2#
- 1...Sd2
- 2.Sc3#
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Sf2
- 2.Sc3#
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Sc5
- 2.Sc3#
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Sg5
- 2.Sc3#
- 2.Qe5#
- 2.Qd6#
- 2.Qf5#
- 1...Sd6
- 2.Sc3#
- 2.Qe5#
- 2.Qxd6#
- 1...Sf6
- 2.Sc3#
- 2.Qe5#
- 2.Qg5#
- 2.Qd6#
- 2.Qf5#
- 1...f5
- 2.Qe5#
- 2.Qxf5#
- 1...f6
- 2.Qxe4#
- 2.Qf5#
- 1...Qxd4!
- threat
- 1.Qg5+?
- 1...f5
- 2.Qxf5#
- 1...Sxg5!
- 1...f5
- 1.Qh5+?
- 1...f5
- 2.Qxf5#
- 1...Sg5!
- 1...f5
- 1.Qf6?
- threat
- 2.Qe5#
- 2.Qf5#
- 1...Qa2+
- 2.Bxa2#
- 1...Sc3+
- 2.Sxc3#
- 1...Qxd4
- 2.Qxd4#
- 1...Qb8
- 2.Ba2#
- 2.Qxf7#
- 1...Qc7
- 2.Sxc7#
- 1...Qd7
- 2.Ba2#
- 2.Qe5#
- 1...Qe7
- 2.Ba2#
- 1...Sd6
- 2.Sc3#
- 2.Qe5#
- 2.Qxd6#
- 1...Sxf6!
- threat
- 1.Qf4?
- Keys
- 1.Qb6!
- 1...Qa2+
- 2.Bxa2#
- 1...Sc3+
- 2.Sxc3#
- 1...Qxb6
- 2.Ba2#
- 1...Qb8
- 2.Ba2#
- 1...Qa1
- 2.Sc7#
- 1...Qa3
- 2.Sc7#
- 1...Qa4
- 2.Sc7#
- 1...Qa5
- 2.Sc7#
- 1...Qa6
- 2.Sc7#
- 1...Qb7
- 2.Ba2#
- 1...Qc7
- 2.Sxc7#
- 1...Qd7
- 2.Ba2#
- 1...Qe7
- 2.Ba2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Sc7#
- 1...Sd2
- 2.Sc3#
- 2.Qd6#
- 1...Sf2
- 2.Sc3#
- 2.Qd6#
- 1...Sc5
- 2.Qd6#
- 1...Sg5
- 2.Sc3#
- 2.Qd6#
- 1...Sd6
- 2.Sc3#
- 2.Qxd6#
- 1...Sf6
- 2.Sc3#
- 2.Qd6#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Qa2+
- 1.Qb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 5
- Sets
- Q(d);N_GUARD::B(A)
- Q(d);CHECK,N_GUARD::B(A),XQ(d)
- B(f);N_GUARD::QAB1(G),XB(f)
- S(b);N_GUARD::QAR1(G)
- S(b);N_GUARD::QAR1(G),XS(b)
- S(b);N_GUARD,S_CUTP(e)::QAR(G)
- P(e);N_GUARD::QAB1(G)
- Tries
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- Q(d);CHECK,N_GUARD::B(A),XQ(d)
- S(b);CHECK,N_GUARD::S(F),XS(b)
- Q(d);::QAB1(G),XS(b)
- Q(d);N_GUARD::B(A)
- Refutation
- Q(d);XB(E)
- Try
- Q(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(G),XP(e)
- Refutation
- S(b);XQ(G)
- Try
- Q(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(G),XP(e)
- Refutation
- S(b);P_SPINS(b)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,N_GUARD::B(A),XQ(d)
- S(b);CHECK,N_GUARD::S(F),XS(b)
- Q(d);OGATE,XB(E)::QAR1(G),XQ(d)
- Q(d);N_GUARD::S(F),XQ(d)
- Q(d);N_GUARD::B(A)
- Refutation
- S(b);XQ(G)
- Try
- Actual
- Q(G);
- Vars
- Q(d);CHECK,N_GUARD::B(A),XQ(d)
- S(b);CHECK,N_GUARD::S(F),XS(b)
- Q(d);N_GUARD,XQ(G)::B(A)
- Q(d);N_GUARD::B(A)
- Q(d);N_GUARD::S(F)
- Q(d);N_GUARD::S(F),XQ(d)
- B(f);N_GUARD::QAB1(G),XB(f)
- B(f);S_CUTQ(d)::S(F)
- S(b);N_GUARD::QAR1(G)
- P(e);N_GUARD::QAB1(G)
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).