MESON Chess Problem Database
Problem Display
PID: 7521 (1K4b1/pQRp4/p2B4/P2N3r/1p1k3p/2pNbP2/2p1P3/n7 w - - 0 1)
Pletenev, Nikolai Alexeyevich
Rychkov, Vladimir Nikolaevich
3rd Prize, Uralski Skazi-90 JT, 1990
#2
9 + 12
| 6161 | Rhodes Open Solving | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Qxb4#
- 1...Re5
- 2.Bxe5#
- 1...Rh6
- 2.Be5#
- 1...Rh7
- 2.Be5#
- 1...Rh8
- 2.Be5#
- 1...Bg5
- 2.Be5#
- 1...Bxd5
- 2.Qxa7#
- 1...Rxd5
- Tries
- 1.Sb2?
- threat
- 2.Rc4#
- 1...Bxd5
- 2.Qxa7#
- 1...cxb2!
- threat
- 1.S3xb4?
- threat
- 2.Qxa7#
- 1...Sb3
- 2.Sxc2#
- 1...Rxd5!
- threat
- 1.S3f4?
- threat
- 2.Qxb4#
- 2.Qxa7#
- 1...Rxd5
- 2.Qxb4#
- 1...Bxd5
- 2.Qxa7#
- 1...Sb3
- 2.Qxb4#
- 1...b3
- 2.Qb4#
- 2.Qxa7#
- 1...Bxf4!
- threat
- 1.Se5?
- threat
- 2.Rc4#
- 1...Bxd5
- 2.Qxa7#
- 1...Rxe5!
- threat
- 1.S5f4?
- threat
- 2.Qe4#
- 1...Rd5
- 2.Qxb4#
- 1...Re5
- 2.Bxe5#
- 1...Bd5
- 2.Qxa7#
- 1...Bh7
- 2.Qxb4#
- 1...Rb5!
- threat
- 1.Sf6?
- threat
- 2.Qe4#
- 1...Rd5
- 2.Qxb4#
- 1...Re5
- 2.Bxe5#
- 1...Bd5
- 2.Qxa7#
- 1...Bh7
- 2.Qxb4#
- 1...Rb5!
- threat
- 1.Se7?
- threat
- 2.Qe4#
- 1...Rd5
- 2.Qxb4#
- 1...Re5
- 2.Bxe5#
- 1...Bd5
- 2.Qxa7#
- 1...Bh7
- 2.Qxb4#
- 1...Rb5!
- threat
- 1.Rc5?
- threat
- 2.Qxb4#
- 1...b3
- 2.Qb4#
- 1...Bxd5!
- threat
- 1.Qxa6?
- threat
- 2.Qc4#
- 1...Bxd5
- 2.Bc5#
- 2.Qxa7#
- 1...Kxd5!
- threat
- 1.Qc6?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Rxd5
- 2.Qc4#
- 1...Bxd5
- 2.Qc5#
- 1...Sb3
- 2.Qc4#
- 1...dxc6!
- threat
- 1.Qb5?
- threat
- 2.Rc4#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd5
- 2.Rc4#
- 2.Qc4#
- 2.Qxb4#
- 1...Bxd5
- 2.Bc5#
- 2.Qc5#
- 1...Sb3
- 2.Rc4#
- 2.Qc4#
- 1...axb5!
- threat
- 1.Sb2?
- Keys
- 1.Sb6!
- threat
- 2.Qe4#
- 1...Rd5
- 2.Rc4#
- 1...Re5
- 2.Bxe5#
- 1...Bd5
- 2.Bc5#
- 1...Bh7
- 2.Rc4#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(h);SBLOCK,XS(E)::QAR2(G),XP(e)
- R(h);N_GUARD::B(F),XR(h)
- R(h);N_GUARD::B(F)
- B(d);S_CUTR(h)::B(F)
- B(l);SBLOCK,XS(E)::QAB(G),XP(j)
- Tries
- Try
- S(B);
- Threat
- R1(H)
- Vars
- B(l);SBLOCK,XS(E)::QAB(G),XP(j)
- Refutation
- P(c);XS(B)
- Try
- S(B);XP(e)
- Threat
- QAB(G),XP(j)
- Vars
- S(a);N_GUARD::S(B),XP(b)
- Refutation
- R(h);XS(E)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(h);XS(E)::QAR2(G),XP(e)
- B(l);XS(E)::QAB(G),XP(j)
- S(a);::QAR2(G),XP(e)
- Refutation
- B(d);XS(B)
- Try
- S(B);
- Threat
- R1(H)
- Vars
- B(l);SBLOCK,XS(E)::QAB(G),XP(j)
- Refutation
- R(h);XS(B)
- Try
- S(E);
- Threat
- QAR1(G)
- Vars
- R(h);S_CUTB(l)::QAR2(G),XP(e)
- R(h);N_GUARD::B(F),XR(h)
- B(l);S_CUTR(h)::QAB(G),XP(j)
- B(l);N_GUARD::QAR2(G),XP(e)
- Refutation
- R(h);P_PINQ(G)
- Try
- S(E);
- Threat
- QAR1(G)
- Vars
- R(h);S_CUTB(l)::QAR2(G),XP(e)
- R(h);N_GUARD::B(F),XR(h)
- B(l);S_CUTR(h)::QAB(G),XP(j)
- B(l);N_GUARD::QAR2(G),XP(e)
- Refutation
- R(h);P_PINQ(G)
- Try
- S(E);
- Threat
- QAR1(G)
- Vars
- R(h);S_CUTB(l)::QAR2(G),XP(e)
- R(h);N_GUARD::B(F),XR(h)
- B(l);S_CUTR(h)::QAB(G),XP(j)
- B(l);N_GUARD::QAR2(G),XP(e)
- Refutation
- R(h);P_PINQ(G)
- Try
- R(H);
- Threat
- QAR2(G),XP(e)
- Vars
- P(e);::QAR2(G)
- Refutation
- B(l);XS(E)
- Try
- Q(G);XP(i)
- Threat
- QAR1(G)
- Refutation
- K(f);P-FLIGHT,XS(E)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(h);XS(E)::QAR1(G)
- B(l);XS(E)::QAB1(G)
- S(a);::QAR1(G)
- Refutation
- P(k);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(3)
- Refutation
- P(i);XQ(G)
- Try
- Actual
- S(E);
- Threat
- QAR1(G)
- Vars
- R(h);S_CUTB(l)::R1(H)
- R(h);N_GUARD::B(F),XR(h)
- B(l);S_CUTR(h)::B(F)
- B(l);N_GUARD::R1(H)
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).