MESON Chess Problem Database
Problem Display
PID: 228632 (1b2N2r/1p3PB1/1Rn3R1/2K1Nk2/Q1p1p3/2PbP1n1/6P1/8 w - - 0 1)
Howard, David M
Problem Observer, 2019
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.f8Q#
- 2.f8R#
- 1...Rh2
- 2.f8Q#
- 2.f8R#
- 1...Rh3
- 2.f8Q#
- 2.f8R#
- 1...Rh4
- 2.f8Q#
- 2.f8R#
- 1...Rh5
- 2.f8Q#
- 2.f8R#
- 1...Rh6
- 2.f8Q#
- 2.f8R#
- 1...Rh7
- 2.f8Q#
- 2.f8R#
- 1...Bd6+
- 2.Sxd6#
- 1...Ba7
- 2.Sd6#
- 1...Sf1
- 2.g4#
- 1...Sh1
- 2.g4#
- 1...Se2
- 2.g4#
- 1...Sh5
- 2.g4#
- 1...Sb4
- 2.Qd7#
- 1...Sa5
- 2.Qd7#
- 1...Sxe5
- 2.Rbf6#
- 1...Sa7
- 2.Qd7#
- 1...Se7
- 2.Qd7#
- 1...Rh1
- Tries
- 1.Qxc6?
- threat
- 2.Qd7#
- 2.Qe6#
- 2.Qf6#
- 2.Qc8#
- 1...Bd6+
- 2.Sxd6#
- 1...Rxe8
- 2.Qf6#
- 1...Bxe5
- 2.Qd7#
- 2.Qe6#
- 2.Qc8#
- 1...Bc7
- 2.Qd7#
- 2.Qe6#
- 2.Qf6#
- 1...Sh5
- 2.Qd7#
- 2.Qe6#
- 2.Qc8#
- 2.g4#
- 1...bxc6!
- threat
- 1.Qxc6?
- Keys
- 1.Qd1!
- threat
- 2.Qg4#
- 1...Bd6+
- 2.Sxd6#
- 1...Sxe5
- 2.Rbf6#
- 1...Rh4
- 2.f8Q#
- 2.f8R#
- 1...Be2
- 2.Qd7#
- 1...Se2
- 2.g4#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(i);N_GUARD::P=Q
- B(h);CHECK,N_GUARD::S(K),XB(h)
- B(h);N_GUARD,P_PINR(G)::S(K)
- S(b);OGATE::P(A)
- S(f);OGATE::QAB(D)
- S(f);OGATE,SBLOCK,XS(F)::R1(G)
- Tries
- Try
- Q(D);XS(f)
- Threat
- DUALS(4)
- Vars
- B(h);CHECK,N_GUARD::S(K),XB(h)
- R(i);XS(K)::QAR1(D)
- Refutation
- P(g);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAB1(D)
- Vars
- B(h);CHECK,N_GUARD::S(K),XB(h)
- S(f);OGATE,SBLOCK,XS(F)::R1(G)
- R(i);N_GUARD::P=Q
- B(a);OGATE::QAB(D)
- S(b);OGATE::P(A)
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).