MESON Chess Problem Database
Problem Display
PID: 182613 (1nr5/1Kp2b2/p2N1Q2/3k3r/1P3PB1/3Pb1N1/3n4/8 w - - 0 1)
Shire, David J
3rd Prize, Problem Observer, 2015
#2
8 + 9
| 136 | Problem Observer | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qe5#
- 1...Rh2
- 2.Qe5#
- 1...Rh3
- 2.Qe5#
- 1...Rh4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rh6
- 2.Qe5#
- 1...Rh7
- 2.Qe5#
- 1...Rhh8
- 2.Qe5#
- 1...Sb1
- 2.Bf3#
- 1...Sf1
- 2.Bf3#
- 1...Sb3
- 2.Bf3#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 2.dxc4#
- 1...Se4
- 2.dxe4#
- 1...Rh1
- Tries
- 1.Sge4?
- threat
- 2.Sc3#
- 1...Sxe4
- 2.dxe4#
- 1...cxd6
- 2.Qxd6#
- 1...Re5
- 2.Qxe5#
- 1...Bd4
- 2.Qxf7#
- 1...Be6
- 2.Bxe6#
- 1...Sb1!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Qxf7#
- 1...Bxf4
- 2.Sc3#
- 2.Qd4#
- 1...Re8
- 2.Sc3#
- 2.Sxc7#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Sc3#
- 2.Qxf5#
- 1...Rh6
- 2.Sc3#
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Rh7
- 2.Sc3#
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Rf8
- 2.Sc3#
- 2.Sxc7#
- 1...Bd4
- 2.Qxd4#
- 2.Qxf7#
- 1...Be6
- 2.Bxe6#
- 2.Qxe6#
- 1...Bg6
- 2.Sc3#
- 2.Be6#
- 2.Qe6#
- 1...Be8
- 2.Sc3#
- 2.Be6#
- 2.Qe6#
- 1...Bg8
- 2.Sc3#
- 1...Sb1
- 2.Bf3#
- 2.Qxf7#
- 1...Se4
- 2.Qxf7#
- 1...axb5!
- threat
- 1.Bf3+?
- 1...Se4
- 2.Bxe4#
- 2.dxe4#
- 1...Sxf3!
- 1...Se4
- 1.Bxh5?
- threat
- 2.Bxf7#
- 2.Qe5#
- 1...Bxf4
- 2.Bxf7#
- 1...Bxh5
- 2.Qe5#
- 1...cxd6
- 2.Bxf7#
- 1...Be6
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bd4
- 2.Bxf7#
- 1...Bg6
- 2.Qe5#
- 1...Be8
- 2.Qe5#
- 1...Bg8
- 2.Qe5#
- 1...Sf3
- 2.Bxf3#
- 2.Bxf7#
- 1...Sc4
- 2.Bf3#
- 2.Bxf7#
- 2.dxc4#
- 1...Sc6
- 2.Bxf7#
- 1...Sd7
- 2.Bxf7#
- 1...Re8!
- threat
- 1.Qxf7+?
- 1...Kxd6
- 2.Qe6#
- 1...Kd4!
- 1...Kxd6
- 1.Sge4?
- Keys
- 1.Se2!
- threat
- 2.Sc3#
- 1...cxd6
- 2.Qxf7#
- 1...Be6
- 2.Qxe6#
- 1...Re5
- 2.Qxe5#
- 1...Bd4
- 2.Qxd4#
- 1...Sb1
- 2.Bf3#
- 1...Se4
- 2.dxe4#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- R(d);N_GUARD::QAR1(G)
- R(d);N_GUARD::QAR1(G),XR(d)
- S(a);N_GUARD::B(E)
- S(a);N_GUARD::B(E),XS(a)
- S(a);OGATE::P(A),XS(a)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(a);OGATE,XS(B)::P(A),XS(a)
- P(f);OGATE,XS(F)::QAR1(G),XP(f)
- R(d);N_GUARD::QAR1(G),XR(d)
- B(b);SBLOCK::QAB(G),XB(g)
- B(g);N_GUARD::B(E),XB(g)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD::QAR1(G),XR(d)
- B(g);::S(F)
- S(a);::QAB(G),XB(g)
- Refutation
- P(e);XS(F)
- Try
- B(E);CHECK
- Refutation
- S(a);XB(E)
- Try
- B(E);XR(d)
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::B(E),XB(g)
- B(g);XB(E)::QAR1(G)
- P(f);XS(F)::B(E),XB(g)
- B(g);::QAR1(G)
- R(i);::QAR1(G)
- B(b);::B(E),XB(g)
- S(h);::B(E),XB(g)
- Refutation
- R(i);
- Try
- Q(G);CHECK,XB(g)
- Vars
- K(c);P-FLIGHT,XS(F)::QAR1(G)
- Refutation
- K(c);P-FLIGHT
- Try
- Actual
- S(B);
- Threat
- S(B)
- Vars
- P(f);SBLOCK,XS(F)::QAB(G),XB(g)
- B(g);N_GUARD::QAB1(G),XB(g)
- R(d);N_GUARD::QAR1(G),XR(d)
- B(b);N_GUARD::QAR1(G),XB(b)
- S(a);N_GUARD::B(E)
- S(a);OGATE::P(A),XS(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).