MESON Chess Problem Database
Problem Display
PID: 67396 (2N4n/K1B2pR1/1p3P1R/2N2k1p/2Q5/p2p4/7b/4rb1n w - - 0 1)
Vakhlakov, Yuri Nikolaevich
1st Prize, Shakhmaty, 1953
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Se7#
- 2.Qe4#
- 1...Rb1
- 2.Se7#
- 2.Qe4#
- 1...Rc1
- 2.Se7#
- 2.Qe4#
- 1...Rd1
- 2.Se7#
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Re5
- 2.Sd6#
- 1...Re7
- 2.Sxe7#
- 1...Be2
- 2.Se7#
- 2.Qe4#
- 1...Bg1
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Se7#
- 1...Sg3
- 2.Qf4#
- 1...h4
- 2.Qg4#
- 1...Ra1
- Tries
- 1.Sd7?
- threat
- 2.Rxh5#
- 1...Be2
- 2.Se7#
- 1...Sg3
- 2.Sd6#
- 1...h4
- 2.Rh5#
- 2.Qg4#
- 1...Bf4!
- threat
- 1.Sd6+?
- 1...Ke5
- 2.Sd7#
- 2.Rg5#
- 1...Bxd6!
- 1...Ke5
- 1.Qxd3+?
- 1...Re4
- 2.Se7#
- 2.Qxe4#
- 1...Bxd3!
- 1...Re4
- 1.Qe6+?
- 1...fxe6
- 2.Se7#
- 1...Rxe6!
- 1...fxe6
- 1.Qd4?
- threat
- 2.Rxh5#
- 1...Re5
- 2.Sd6#
- 1...Be2
- 2.Se7#
- 2.Qe4#
- 2.Qd7#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Se7#
- 1...Sg3
- 2.Sd6#
- 2.Qf2#
- 2.Qf4#
- 1...h4
- 2.Rh5#
- 2.Qg4#
- 1...bxc5!
- threat
- 1.Qh4?
- threat
- 2.Rxh5#
- 2.Rg5#
- 2.Qg5#
- 2.Qxh5#
- 1...Bxc7
- 2.Rxh5#
- 2.Rg5#
- 2.Qg5#
- 1...Bd6
- 2.Rxh5#
- 2.Rg5#
- 2.Qg5#
- 1...Re5
- 2.Sd6#
- 2.Rxh5#
- 2.Rg5#
- 2.Qg5#
- 1...Be2
- 2.Se7#
- 2.Rg5#
- 2.Qg5#
- 2.Qe4#
- 1...Bf4
- 2.Qxf4#
- 1...Be5
- 2.Se7#
- 2.Rxh5#
- 2.Rg5#
- 2.Qg5#
- 1...Sg3
- 2.Rg5#
- 2.Qg5#
- 2.Qf4#
- 1...Sg6
- 2.Rxh5#
- 1...bxc5!
- threat
- 1.Sd7?
- Keys
- 1.Be5!
- threat
- 2.Rxh5#
- 1...Kxe5
- 2.Rg5#
- 1...Rxe5
- 2.Sd6#
- 1...Bxe5
- 2.Se7#
- 1...Be2
- 2.Qe4#
- 1...Bf4
- 2.Qxf4#
- 1...Sg3
- 2.Qf4#
- 1...h4
- 2.Rh5#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(a);N_GUARD::QAB1(A),XR(a)
- R(a);SBLOCK,S_CUTB(d)::S(H)
- R(a);N_GUARD,P_PINB(F)::S(H),XR(a)
- B(d);N_GUARD::QAR1(A)
- B(d);N_GUARD::QAR1(A),XB(d)
- B(d);S_CUTR(a)::S(H)
- S(c);S_CUTB(d)::QAR1(A)
- P(h);N_GUARD::QAB1(A)
- Tries
- Try
- S(B);
- Threat
- R(D),XP(h)
- Vars
- B(b);S_CUTR(a)::S(H)
- S(c);S_CUTB(d)::S(H)
- Refutation
- B(d);
- Try
- S(H);CHECK
- Refutation
- B(d);XS(H)
- Try
- Q(A);CHECK,XP(f)
- Refutation
- B(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- P(j);XQ(A)::S(H)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- R(D),XP(h)
- Vars
- R(a);S_CUTB(d)::S(H)
- B(d);N_GUARD::QAR1(A),XB(d)
- B(d);S_CUTR(a)::S(H)
- Refutation
- P(i);XS(B)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- B(d);N_GUARD::QAR1(A),XB(d)
- S(k);::R(D),XP(h)
- Refutation
- P(i);XS(B)
- Try
- Actual
- B(F);
- Threat
- R(D),XP(h)
- Vars
- K(g);P-FLIGHT,XB(F)::R(G)
- R(a);SBLOCK,XB(F)::S(H)
- B(d);SBLOCK,XB(F)::S(H)
- B(b);S_CUTR(a)::QAB1(A)
- B(d);N_GUARD::QAR1(A),XB(d)
- S(c);S_CUTB(d)::QAR1(A)
- P(h);::R(D)
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).