MESON Chess Problem Database
Problem Display
PID: 89171 (8/3pKQ1p/2NP2p1/1p3NR1/4k1n1/1r2p1P1/b1Pb1nP1/3rq3 w - - 0 1)
Shanshin, Valery Yurevich
Uralski Problemist, 1999
#2
9 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sh1
- 2.Rxg4#
- 1...b4
- 2.Qc4#
- 1...gxf5
- 2.Qxf5#
- 1...Sh1
- Tries
- 1.Sfd4?
- threat
- 2.Qd5#
- 2.Qf3#
- 2.Qf4#
- 1...dxc6
- 2.Qf4#
- 1...Qe2
- 2.Qd5#
- 2.Qf4#
- 1...Rbb1
- 2.Qf3#
- 2.Qf4#
- 1...Rb2
- 2.Qf3#
- 2.Qf4#
- 1...Ra3
- 2.Qf3#
- 2.Qf4#
- 1...Rc3
- 2.Qf3#
- 2.Qf4#
- 1...Rd3
- 2.Qf3#
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 2.Qf4#
- 1...Sd3
- 2.Qd5#
- 2.Qf3#
- 1...Sh3
- 2.Qd5#
- 2.Qf3#
- 1...Sh2
- 2.Re5#
- 2.Qd5#
- 2.Qf4#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Re5#
- 1...e2!
- threat
- 1.Sh4?
- threat
- 2.Qd5#
- 2.Qf3#
- 2.Qf4#
- 1...dxc6
- 2.Qf4#
- 1...Qe2
- 2.Qd5#
- 2.Qf4#
- 1...Rbb1
- 2.Qf3#
- 2.Qf4#
- 1...Rb2
- 2.Qf3#
- 2.Qf4#
- 1...Ra3
- 2.Qf3#
- 2.Qf4#
- 1...Rc3
- 2.Qf3#
- 2.Qf4#
- 1...Rd3
- 2.Qf3#
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 2.Qf4#
- 1...Bc1
- 2.Qf3#
- 2.Qf4#
- 1...Bc3
- 2.Qf3#
- 2.Qf4#
- 1...Bb4
- 2.Qf3#
- 2.Qf4#
- 1...Ba5
- 2.Qf3#
- 2.Qf4#
- 1...Sd3
- 2.Qd5#
- 2.Qf3#
- 1...Sh3
- 2.Qd5#
- 2.Qf3#
- 1...Sh2
- 2.Re5#
- 2.Qd5#
- 2.Qf4#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Re5#
- 1...e2!
- threat
- 1.Sh6?
- threat
- 2.Qd5#
- 2.Qf3#
- 2.Qf4#
- 1...dxc6
- 2.Qf4#
- 1...Qe2
- 2.Qd5#
- 2.Qf4#
- 1...Rbb1
- 2.Qf3#
- 2.Qf4#
- 1...Rb2
- 2.Qf3#
- 2.Qf4#
- 1...Ra3
- 2.Qf3#
- 2.Qf4#
- 1...Rc3
- 2.Qf3#
- 2.Qf4#
- 1...Rd3
- 2.Qf3#
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 2.Qf4#
- 1...Bc1
- 2.Qf3#
- 2.Qf4#
- 1...Bc3
- 2.Qf3#
- 2.Qf4#
- 1...Bb4
- 2.Qf3#
- 2.Qf4#
- 1...Ba5
- 2.Qf3#
- 2.Qf4#
- 1...Sd3
- 2.Qd5#
- 2.Qf3#
- 1...Sh3
- 2.Qd5#
- 2.Qf3#
- 1...Sh2
- 2.Re5#
- 2.Qd5#
- 2.Qf4#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Re5#
- 1...e2!
- threat
- 1.Sg7?
- threat
- 2.Qd5#
- 2.Qf3#
- 2.Qf4#
- 1...dxc6
- 2.Qf4#
- 1...Qe2
- 2.Qd5#
- 2.Qf4#
- 1...Rbb1
- 2.Qf3#
- 2.Qf4#
- 1...Rb2
- 2.Qf3#
- 2.Qf4#
- 1...Ra3
- 2.Qf3#
- 2.Qf4#
- 1...Rc3
- 2.Qf3#
- 2.Qf4#
- 1...Rd3
- 2.Qf3#
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 2.Qf4#
- 1...Bc1
- 2.Qf3#
- 2.Qf4#
- 1...Bc3
- 2.Qf3#
- 2.Qf4#
- 1...Bb4
- 2.Qf3#
- 2.Qf4#
- 1...Ba5
- 2.Qf3#
- 2.Qf4#
- 1...Sd3
- 2.Qd5#
- 2.Qf3#
- 1...Sh3
- 2.Qd5#
- 2.Qf3#
- 1...Sh2
- 2.Re5#
- 2.Qd5#
- 2.Qf4#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Re5#
- 1...e2!
- threat
- 1.Qe6+?
- 1...Se5
- 2.Qxe5#
- 1...dxe6!
- 1...Se5
- 1.Sfd4?
- Keys
- 1.Sxe3!
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kxe3
- 2.Qf3#
- 1...Qxe3
- 2.Qd5#
- 1...Rxe3
- 2.Qf4#
- 1...Bxe3
- 2.Qf3#
- 1...dxc6
- 2.Qf4#
- 1...Qe2
- 2.Qf4#
- 1...Sd3
- 2.Qf3#
- 1...Sh3
- 2.Qf3#
- 1...Sh2
- 2.Re5#
- 2.Qf4#
- 1...Se5
- 2.Rxe5#
- 2.Qf4#
- 1...Sf6
- 2.Re5#
- threat
- 1.Sxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 3
- Sets
- S(e);N_GUARD::R(E),XS(i)
- P(j);N_GUARD::QAR2(I)
- P(k);OGATE,XS(D)::QAB1(I),XP(k)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- P(l);XS(F)::QAR1(I)
- S(i);N_GUARD::R1(E),XS(i)
- S(i);N_GUARD::R1(E)
- Refutation
- P(g);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- P(l);XS(F)::QAR1(I)
- S(i);N_GUARD::R1(E),XS(i)
- S(i);N_GUARD::R1(E)
- Refutation
- P(g);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- P(l);XS(F)::QAR1(I)
- S(i);N_GUARD::R1(E),XS(i)
- S(i);N_GUARD::R1(E)
- Refutation
- P(g);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- P(l);XS(F)::QAR1(I)
- S(i);N_GUARD::R1(E),XS(i)
- S(i);N_GUARD::R1(E)
- Refutation
- P(g);
- Try
- Q(I);CHECK
- Vars
- S(i);N_GUARD,P_SPINS(i)::QAR1(I),XS(i)
- Refutation
- P(l);XQ(I)
- Try
- Actual
- S(D);XP(g)
- Threat
- DUALS(2)
- Vars
- K(h);P-FLIGHT,XS(D)::QAR1(I)
- Q(b);SBLOCK,XS(D)::QAB1(I)
- R(f);XS(D)::QAR1(I)
- B(d);XS(D)::QAB1(I)
- P(l);XS(F)::QAR1(I)
- Q(b);::QAR1(I)
- S(e);::QAB1(I)
- S(i);N_GUARD::R1(E)
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).