MESON Chess Problem Database
Problem Display
PID: 43376 (1b2R1K1/2B1N3/2Rn1pp1/3p2q1/3kpnp1/3P2Q1/2P1PN2/8 w - - 0 1)
Stevenson, Edward
Double Pin-Mate after a Black King Move, 1980
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Bb6#
- 2.c3#
- 2.e3#
- 1...Sxe2
- 2.Bb6#
- 1...Sg2
- 2.Bb6#
- 2.c3#
- 1...Sxd3
- 2.c3#
- 1...Sh3
- 2.Bb6#
- 2.c3#
- 1...Sh5
- 2.Bb6#
- 2.c3#
- 1...Se6
- 2.c3#
- 1...Sb5
- 2.e3#
- 1...Sf5
- 2.c3#
- 1...Sb7
- 2.c3#
- 2.e3#
- 1...Sf7
- 2.c3#
- 2.e3#
- 1...Sc8
- 2.c3#
- 2.e3#
- 1...Sxe8
- 2.c3#
- 2.e3#
- 1...Qe5
- Tries
- 1.Sf5+?
- 1...Qxf5
- 2.Bb6#
- 2.c3#
- 2.e3#
- 1...Sxf5
- 2.Bb6#
- 2.c3#
- 1...gxf5+!
- 1...Qxf5
- 1.Sc8?
- threat
- 2.Bb6#
- 2.c3#
- 2.e3#
- 1...Bxc7
- 2.c3#
- 2.e3#
- 1...Sxe2
- 2.Bb6#
- 1...Sxd3
- 2.c3#
- 1...Sxc8
- 2.c3#
- 2.e3#
- 1...Sxe8
- 2.c3#
- 2.e3#
- 1...Ba7
- 2.c3#
- 2.e3#
- 1...Sg2
- 2.Bb6#
- 2.c3#
- 1...Sh3
- 2.Bb6#
- 2.c3#
- 1...Sh5
- 2.Bb6#
- 2.c3#
- 1...Se6
- 2.c3#
- 1...Sb5
- 2.Bb6#
- 2.e3#
- 1...Sf5
- 2.Bb6#
- 2.c3#
- 1...Sb7
- 2.c3#
- 2.e3#
- 1...e3
- 2.Bb6#
- 2.Qxe3#
- 2.c3#
- 1...Sc4!
- threat
- 1.Sf5+?
- Keys
- 1.dxe4!
- threat
- 2.Qc3#
- 1...Ke5
- 2.Sf5#
- 1...Sxe2
- 2.Bb6#
- 1...Sxe4
- 2.e3#
- 1...Sd3
- 2.c3#
- 1...Sc4
- 2.c3#
- 1...Sb5
- 2.e3#
- threat
- 1.dxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- S(c);XP(B)::B(G)
- S(c);XP(D)::P(A)
- S(c);::P(A)
- S(g);::P(B)
- S(g);::P(A)
- Tries
- Try
- S(H);CHECK
- Refutation
- P(i);CHECK,XS(H)
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- S(c);XP(B)::B(G)
- S(c);XP(D)::P(A)
- S(c);::P(A)
- Refutation
- S(g);
- Try
- Actual
- P(D);XP(b)
- Threat
- QAB1(E)
- Vars
- K(a);P_SPINS(c),S_FLIGHT::R(I)+S(H)
- S(c);XP(B)::B(G)
- S(g);XP(D)::P(B)
- S(c);::P(A)
- S(g);::P(A)
- S(g);::P(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).