MESON Chess Problem Database
Problem Display
PID: 169076 (4nBN1/3K4/5p2/1p1kP3/2N2R2/2pP1p2/2B1r3/3R1Qn1 w - - 0 1)
Permyakov, Evgeni Nikolaevich
1st Place, SuperProblem 018. TT, 2012
#2
10 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.dxe4#
- 1...Rxe5
- 2.Sb6#
- 1...Sc7
- 2.Sxf6#
- 1...Sg7
- 2.Sxf6#
- 1...fxe5
- 2.Sb6#
- 1...Re4
- Tries
- 1.Se3+?
- 1...Kxe5
- 2.Re4#
- 1...Rxe3!
- 1...Kxe5
- 1.Bb4?
- threat
- 2.Se7#
- 1...Rxe5
- 2.Sb6#
- 1...Re4
- 2.dxe4#
- 1...bxc4!
- threat
- 1.Bd6?
- threat
- 2.Sb6#
- 2.Se7#
- 1...Rxe5
- 2.Sb6#
- 1...bxc4
- 2.Se7#
- 2.dxc4#
- 1...Re4
- 2.dxe4#
- 1...Sxd6!
- threat
- 1.Re4?
- threat
- 2.Sb6#
- 1...Rxe4
- 2.dxe4#
- 1...bxc4
- 2.dxc4#
- 1...Sd6!
- threat
- 1.Qxf3+?
- 1...Re4
- 2.Qxe4#
- 1...Sxf3!
- 1...Re4
- 1.Se3+?
- Keys
- 1.d4!
- threat
- 2.Sb6#
- 1...Kxc4
- 2.d5#
- 1...bxc4
- 2.Se7#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(b);OGATE::R(A)+P(D)DCHECK,XR(b)
- R(b);SBLOCK,XP(G)::S(E)
- S(h);N_GUARD::S(J),XP(g)
- P(g);SBLOCK,XP(G)::S(E)
- Tries
- Try
- S(E);CHECK
- Vars
- K(f);P-FLIGHT,XP(G)::R1(F)
- Refutation
- R(b);XS(E)
- Try
- B(I);
- Threat
- S(J)
- Vars
- R(b);SBLOCK,XP(G)::S(E)
- R(b);OGATE::R(A)+P(D)DCHECK,XR(b)
- Refutation
- P(e);XS(E)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(b);XP(G)::S(E)
- R(b);OGATE::R(A)+P(D)DCHECK,XR(b)
- Refutation
- S(h);XB(I)
- Try
- R(F);
- Threat
- S(E)
- Vars
- R(b);OGATE,XR(F)::R(A)+P(D)DCHECK,XR(b)
- P(e);OGATE,XS(E)::R(A)+P(D)DCHECK,XP(e)
- Refutation
- S(h);
- Try
- Q(B);CHECK,XP(d)
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB1(B),XR(b)
- Refutation
- S(a);XQ(B)
- Try
- Actual
- P(D);
- Threat
- S(E)
- Vars
- K(f);OGATE,P_SPINR(b),S_FLIGHT,XS(E)::R(F)+P(D)
- P(e);SBLOCK,XS(E)::S(J)
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).