MESON Chess Problem Database
Problem Display
PID: 169207 (8/b1n2K2/r3R3/1N2Pkpn/4rPRP/1P2p2P/b1BP4/5N2 w - - 0 1)
Bourd, Evgeny
2nd Prize, SuperProblem 085. TT, 2013
#2
12 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Sd6#
- 1...Ra4
- 2.Sd6#
- 1...Ra5
- 2.Sd6#
- 1...Rb6
- 2.Sxe3#
- 2.Sd4#
- 1...Rd6
- 2.Sxd6#
- 1...Bd4
- 2.Sxd4#
- 1...Bb6
- 2.Sd6#
- 1...Bb8
- 2.Sxe3#
- 2.Sd4#
- 1...Sg3
- 2.Sxg3#
- 1...Sxf4
- 2.Sg3#
- 2.Rxg5#
- 1...Sf6
- 2.Sg3#
- 1...Sg7
- 2.Sg3#
- 1...gxf4
- 2.Rg5#
- 1...Ra3
- Tries
- 1.Sxa7?
- threat
- 2.Sxe3#
- 1...exd2
- 2.Se3#
- 1...gxf4
- 2.Rg5#
- 1...e2
- 2.Se3#
- 1...Sd5!
- threat
- 1.Rb6?
- threat
- 2.Sxe3#
- 2.Sd4#
- 2.Sd6#
- 1...Rxb6
- 2.Sxe3#
- 2.Sd4#
- 1...Bxb6
- 2.Sd6#
- 1...Sxf4
- 2.Rxg5#
- 1...Sxb5
- 2.Sxe3#
- 1...exd2
- 2.Se3#
- 2.Sd4#
- 2.Sd6#
- 1...gxf4
- 2.Rg5#
- 1...Ra4
- 2.Sxe3#
- 2.Sd6#
- 1...Sd5
- 2.Sd4#
- 2.Sd6#
- 1...Se6
- 2.Sxe3#
- 2.Sd6#
- 1...Se8
- 2.Sxe3#
- 2.Sd4#
- 1...e2
- 2.Se3#
- 2.Sd4#
- 2.Sd6#
- 1...Bxb3+!
- threat
- 1.Rf6+?
- 1...Sxf6
- 2.Sg3#
- 1...Rxf6+!
- 1...Sxf6
- 1.dxe3?
- threat
- 2.Rxg5#
- 1...Bxe3
- 2.Sxe3#
- 1...gxf4
- 2.Rg5#
- 1...gxh4
- 2.Rg5#
- 1...Sxe6!
- threat
- 1.d4?
- threat
- 2.Sxe3#
- 1...Bxd4
- 2.Sxd4#
- 1...gxf4
- 2.Rg5#
- 1...e2
- 2.Se3#
- 1...Sd5!
- threat
- 1.Sxa7?
- Keys
- 1.d3!
- threat
- 2.dxe4#
- 1...Rxf4
- 2.Rxg5#
- 1...Rxe5
- 2.Rxe5#
- 1...Rea4
- 2.d4#
- 1...Rb4
- 2.d4#
- 1...Rc4
- 2.dxc4#
- 1...Rd4
- 2.Sxe3#
- 1...Raa4
- 2.Sd6#
- 1...Sg3
- 2.Sxg3#
- 1...Sf6
- 2.Sg3#
- threat
- 1.d3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- R(g);N_GUARD::S(I)
- R(g);N_GUARD::S(I),XR(g)
- B(h);N_GUARD::S(I),XB(h)
- B(h);S_CUTR(g)::S(I)
- S(f);N_GUARD::S(A),XS(f)
- S(f);N_GUARD::S(A)
- P(e);SBLOCK,XP(F)::R1(G)
- Tries
- Try
- S(I);XB(h)
- Threat
- S(A),XP(b)
- Vars
- P(b);XP(C)::S(A)
- P(e);SBLOCK,XP(F)::R1(G)
- P(b);::S(A)
- Refutation
- S(i);
- Try
- R(K);P_SPINP(D)
- Threat
- DUALS(3)
- Vars
- B(h);XR(K)::S(I)
- S(f);SBLOCK,XP(F)::R1(G),XP(e)
- S(i);XS(I)::S(A),XP(b)
- P(e);SBLOCK,XP(F)::R1(G)
- Refutation
- B(a);CHECK,XP(D)
- Try
- R(K);CHECK,P_SPINP(D)
- Vars
- S(f);XR(K)::S(A)
- Refutation
- R(g);CHECK,XR(K)
- Try
- P(C);XP(b)
- Threat
- R1(G),XP(e)
- Vars
- B(h);XP(C)::S(A),XB(h)
- P(e);XP(F)::R1(G)
- P(e);XP(H)::R1(G)
- Refutation
- S(i);XR(K)
- Try
- P(C);
- Threat
- S(A),XP(b)
- Vars
- B(h);XP(C)::S(I),XB(h)
- P(e);SBLOCK,XP(F)::R1(G)
- P(b);::S(A)
- Refutation
- S(i);
- Try
- Actual
- P(C);N_PINR(c)
- Threat
- P(C),XR(c)
- Vars
- R(c);SBLOCK,XP(F)::R1(G),XP(e)
- R(c);OGATE,XP(J)::R1(K),XR(c)
- R(c);::B(B)+P(C)
- R(c);OGATE::B(B)+P(C),XR(c)
- R(c);N_GUARD,S_CUTB(h)::S(A),XP(b)
- R(g);N_GUARD::S(I)
- S(f);N_GUARD::S(A),XS(f)
- S(f);N_GUARD::S(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).