MESON Chess Problem Database
Problem Display
PID: 45185 (2R2K2/N1P3N1/1p1kP3/1p3p2/1PnpnP2/2p4R/Q7/7B w - - 0 1)
Stevenson, Edward
Double Pin-Mate after a Black King Move, 1980
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Rd8#
- 1...Sb2
- 2.Sxf5#
- 2.Se8#
- 1...Scd2
- 2.Sxf5#
- 2.Se8#
- 1...Sa3
- 2.Sxf5#
- 2.Se8#
- 1...Se3
- 2.Se8#
- 1...Sa5
- 2.Sxf5#
- 2.Se8#
- 1...Se5
- 2.Sxf5#
- 2.Se8#
- 1...Sed2
- 2.Sxb5#
- 1...Sf2
- 2.Sxb5#
- 1...Sg3
- 2.Sxb5#
- 1...Sc5
- 2.Sxb5#
- 1...Sg5
- 2.Sxb5#
- 1...Sf6
- 2.Sxb5#
- 1...d3
- 2.Rxd3#
- 1...Kd5
- Tries
- 1.Sxb5+?
- 1...Kd5
- 2.Qa8#
- 1...Kc6!
- 1...Kd5
- 1.Bg2?
- 1...Kd5
- 2.Rd8#
- 1...Sb2
- 2.Sxf5#
- 2.Se8#
- 1...Scd2
- 2.Sxf5#
- 2.Se8#
- 1...Sa3
- 2.Sxf5#
- 2.Se8#
- 1...Se3
- 2.Se8#
- 1...Sa5
- 2.Sxf5#
- 2.Se8#
- 1...Se5
- 2.Sxf5#
- 2.Se8#
- 1...Sed2
- 2.Sxb5#
- 1...Sf2
- 2.Sxb5#
- 1...Sg3
- 2.Sxb5#
- 1...Sc5
- 2.Sxb5#
- 1...Sg5
- 2.Sxb5#
- 1...Sf6
- 2.Sxb5#
- 1...d3
- 2.Rxd3#
- 1...c2!
- 1...Kd5
- 1.Bxe4?
- threat
- 2.Sxb5#
- 1...Sa3
- 2.Sxf5#
- 2.Se8#
- 2.Qd5#
- 1...fxe4!
- threat
- 1.Rg3?
- 1...Kd5
- 2.Rd8#
- 1...Sxg3
- 2.Sxb5#
- 1...Sb2
- 2.Sxf5#
- 2.Se8#
- 1...Scd2
- 2.Sxf5#
- 2.Se8#
- 1...Sa3
- 2.Sxf5#
- 2.Se8#
- 1...Se3
- 2.Se8#
- 1...Sa5
- 2.Sxf5#
- 2.Se8#
- 1...Se5
- 2.Sxf5#
- 2.Se8#
- 1...Sed2
- 2.Sxb5#
- 1...Sf2
- 2.Sxb5#
- 1...Sc5
- 2.Sxb5#
- 1...Sg5
- 2.Sxb5#
- 1...Sf6
- 2.Sxb5#
- 1...d3
- 2.Rxd3#
- 1...c2!
- 1...Kd5
- 1.Qb3?
- 1...Kd5
- 2.Rd8#
- 1...Sb2
- 2.Sxf5#
- 2.Se8#
- 1...Scd2
- 2.Sxf5#
- 2.Se8#
- 1...Sa3
- 2.Sxf5#
- 2.Se8#
- 1...Se3
- 2.Se8#
- 1...Sa5
- 2.Sxf5#
- 2.Se8#
- 1...Se5
- 2.Sxf5#
- 2.Se8#
- 1...Sed2
- 2.Sxb5#
- 1...Sf2
- 2.Sxb5#
- 1...Sg3
- 2.Sxb5#
- 1...Sc5
- 2.Sxb5#
- 1...Sg5
- 2.Sxb5#
- 1...Sf6
- 2.Sxb5#
- 1...d3
- 2.Rxd3#
- 1...c2!
- 1...Kd5
- 1.Qxc4?
- threat
- 2.Sxb5#
- 2.Sxf5#
- 2.Se8#
- 2.Rd8#
- 2.Qxd4#
- 2.Qc6#
- 1...Sg3
- 2.Sxb5#
- 2.Se8#
- 2.Rd8#
- 2.Qd5#
- 2.Qxd4#
- 2.Qc6#
- 1...Sc5
- 2.Sxb5#
- 2.Sxf5#
- 2.Se8#
- 2.Qd5#
- 2.Qxd4#
- 1...Sf6
- 2.Sxb5#
- 2.Sxf5#
- 2.Qc6#
- 1...d3
- 2.Sxb5#
- 2.Sxf5#
- 2.Se8#
- 2.Rxd3#
- 2.Rd8#
- 2.Qxd3#
- 2.Qd4#
- 2.Qc6#
- 1...bxc4!
- threat
- 1.Sxb5+?
- Keys
- 1.Rd3!
- threat
- 2.Rxd4#
- 1...Kd5
- 2.Rd8#
- 1...Se3
- 2.Se8#
- 1...Sf6
- 2.Sxb5#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- K(h);P-FLIGHT,P_SPINS(b)::R(J)
- S(b);::S(I)
- S(d);::S(G),XP(e)
- P(c);OGATEB::R(C),XP(c)
- Tries
- Try
- S(G);CHECK,XP(e)
- Vars
- K(h);P-FLIGHT,P_SPINS(b)::QAB(B)
- Refutation
- K(h);P-FLIGHT,P_SPINS(d)
- Try
- B(A);
- Vars
- K(h);P-FLIGHT,P_SPINS(b)::R(J)
- S(b);::S(I)
- S(d);::S(G),XP(e)
- P(c);OGATEB::R(C),XP(c)
- Refutation
- P(a);
- Try
- B(A);XS(d)
- Threat
- S(G),XP(e)
- Refutation
- P(f);XB(A)
- Try
- R(C);
- Vars
- K(h);P-FLIGHT,P_SPINS(b)::R(J)
- S(d);XR(C)::S(G),XP(e)
- S(b);::S(I)
- S(d);::S(G),XP(e)
- P(c);OGATEB::R(C),XP(c)
- Refutation
- P(a);
- Try
- Q(B);
- Vars
- K(h);P-FLIGHT,P_SPINS(b)::R(J)
- S(b);::S(I)
- S(d);::S(G),XP(e)
- P(c);OGATEB::R(C),XP(c)
- Refutation
- P(a);
- Try
- Q(B);XS(b)
- Threat
- DUALS(6)
- Refutation
- P(e);XQ(B)
- Try
- Actual
- R(C);P_PINP(c)
- Threat
- R(C),XP(c)
- Vars
- K(h);P-FLIGHT,P_SPINS(b)::R(J)
- S(b);::S(I)
- S(d);::S(G),XP(e)
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).