MESON Chess Problem Database
Problem Display
PID: 31245 (1n5B/K3PrR1/p2R1n2/N1P1k1P1/r7/1pP1P1PB/2b1QN2/8 w - - 0 1)
Rudenko, Valentin Fedorovich
13th Place, 06. WCCT, 1998-2000
#2
14 + 8
| 3447 | 06. WCCT Award | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc4#
- 1...Ra2
- 2.Sc4#
- 1...Ra3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Rd4
- 2.cxd4#
- 2.exd4#
- 1...Rf4
- 2.exf4#
- 2.gxf4#
- 1...Rxe7+
- 2.Rxe7#
- 1...Sd5
- 2.Re6#
- 1...Sc6+
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...Ra1
- Tries
- 1.Rxf7?
- threat
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Sc6+
- 2.Sxc6#
- 1...Rxa5
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Ra1
- 2.Sc4#
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Ra2
- 2.Sc4#
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Ra3
- 2.Sc4#
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Rb4
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Rc4
- 2.Sxc4#
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Rd4
- 2.Bxf6#
- 2.cxd4#
- 2.exd4#
- 2.e8Q#
- 2.e8R#
- 1...Re4
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Rf4
- 2.exf4#
- 2.gxf4#
- 2.e8Q#
- 2.e8R#
- 1...Rh4
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Bb1
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Bd1
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Bd3
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Be4
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Bf5
- 2.Bxf6#
- 1...Bg6
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Bh7
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Sd7
- 2.Sc6#
- 2.e8Q#
- 2.e8R#
- 1...b2
- 2.Bxf6#
- 2.e8Q#
- 2.e8R#
- 1...Rg4!
- threat
- 1.Qf3?
- threat
- 2.Re6#
- 1...Rxe7+
- 2.Rxe7#
- 1...Sc6+
- 2.Sxc6#
- 1...Re4
- 2.Qf5#
- 1...Be4
- 2.Qf4#
- 1...Bf5
- 2.Qxf5#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Qd5#
- 1...Rg4!
- threat
- 1.Qc4?
- threat
- 2.Re6#
- 2.Qe6#
- 1...Rxe7+
- 2.Rxe7#
- 1...Sc6+
- 2.Sxc6#
- 1...Rxc4
- 2.Sxc4#
- 1...Sg4
- 2.Qd5#
- 2.Qe6#
- 1...Sd5
- 2.Rxd5#
- 2.Re6#
- 2.Qxd5#
- 1...Bf5!
- threat
- 1.c4?
- threat
- 2.Re6#
- 1...Rxe7+
- 2.Rxe7#
- 1...Sc6+
- 2.Sxc6#
- 1...Rxc4
- 2.Sxc4#
- 1...Bf5
- 2.Qb2#
- 1...Sg4!
- threat
- 1.Rxf7?
- Keys
- 1.e4!
- threat
- 2.Re6#
- 1...Rxe7+
- 2.Rxe7#
- 1...Sc6+
- 2.Sxc6#
- 1...Rxe4
- 2.Sc4#
- 1...Bxe4
- 2.Sd3#
- 1...Sxe4
- 2.Rxf7#
- 1...Sg4
- 2.Sxg4#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- R(c);N_GUARD::S(G)
- R(c);N_GUARD::S(G),XR(c)
- R(g);CHECK,OGATE,XP(L)::R(M),XR(g)
- S(f);SBLOCK::R1(J)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(h);N_GUARD,N_PINP(L)::S(G)
- Tries
- Try
- R(M);N_SPINP(L),P_PINS(f),XR(g)
- Threat
- DUALS(3)
- Vars
- S(h);CHECK,N_GUARD::S(G),XS(h)
- B(a);::B(N),XS(f)
- Refutation
- R(c);
- Try
- Q(A);
- Threat
- R1(J)
- Vars
- R(g);CHECK,OGATE,XP(L)::R(M),XR(g)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(c);S_CUTB(a)::QAR1(A)
- B(a);S_CUTR(c)::QAB1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(f);N_GUARD,S_CUTR(c)::S(B)
- S(f);N_GUARD::QAR1(A)
- Refutation
- R(c);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATE,XP(L)::R(M),XR(g)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(c);XQ(A)::S(G),XR(c)
- Refutation
- B(a);
- Try
- P(C);
- Threat
- R1(J)
- Vars
- R(g);CHECK,OGATE,XP(L)::R(M),XR(g)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(c);XP(C)::S(G),XR(c)
- B(a);OGATE::QAB(A)
- Refutation
- S(f);
- Try
- Actual
- P(D);
- Threat
- R1(J)
- Vars
- R(g);CHECK,OGATE,XP(L)::R(M),XR(g)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(c);N_GUARD,P_SPINR(c),XP(D)::S(G)
- B(a);N_GUARD,P_SPINB(a),XP(D)::S(B)
- S(f);OGATEB,P_SPINS(f),XP(D)::B(N)+R(M),XR(g)
- S(f);N_GUARD::S(B),XS(f)
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).