MESON Chess Problem Database
Problem Display
PID: 225829 (8/p2p1K2/3p3B/p1Nn3R/Qnrk4/1B3RN1/4P3/8 w - - 0 1)
Varitsky, Aleksandr Nikolaevich
Praca, 1999
#2
9 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Rxd5#
- 1...Rc2
- 2.Rxd5#
- 1...Rc3
- 2.Rxd5#
- 1...Rxc5
- 2.Rd3#
- 1...Sa2
- 2.Qxc4#
- 1...Sc2
- 2.Qxc4#
- 1...Sd3
- 2.Qxc4#
- 1...Sa6
- 2.Qxc4#
- 1...Sc6
- 2.Qxc4#
- 1...Sc3
- 2.Be3#
- 2.Bg7#
- 2.e3#
- 1...Se3
- 2.Bg7#
- 1...Sf4
- 2.Bg7#
- 1...Sb6
- 2.Bg7#
- 1...Sc7
- 2.Bg7#
- 1...Se7
- 2.Bg7#
- 1...Rc1
- Tries
- 1.Sce4?
- 1...Rc1
- 2.Rd3#
- 2.Rxd5#
- 1...Rc2
- 2.Rd3#
- 2.Rxd5#
- 1...Rc3
- 2.Rxd5#
- 1...Rc5
- 2.Rd3#
- 1...Rc6
- 2.Rd3#
- 2.Rxd5#
- 1...Rc7
- 2.Rd3#
- 2.Rxd5#
- 1...Rc8
- 2.Rd3#
- 2.Rxd5#
- 1...Sa2
- 2.Rd3#
- 2.Qxc4#
- 1...Sc2
- 2.Rd3#
- 2.Qxc4#
- 1...Sd3
- 2.Rxd3#
- 2.Qxc4#
- 1...Sa6
- 2.Rd3#
- 2.Qxc4#
- 1...Sc6
- 2.Rd3#
- 2.Qxc4#
- 1...Sc3
- 2.Be3#
- 2.Bg7#
- 1...Se3
- 2.Bxe3#
- 2.Bg7#
- 1...Sf4
- 2.Bg7#
- 1...Sb6
- 2.Be3#
- 2.Bg7#
- 1...Sf6
- 2.Be3#
- 1...Sc7
- 2.Be3#
- 2.Bg7#
- 1...Se7
- 2.Be3#
- 2.Bg7#
- 1...a6!
- 1...Rc1
- 1.Sa6?
- 1...Sxa6
- 2.Qxc4#
- 1...Sd3
- 2.Rxd3#
- 2.Qxc4#
- 1...Se3
- 2.Bg7#
- 1...Rc1
- 2.Rd3#
- 2.Rxd5#
- 1...Rc2
- 2.Rd3#
- 2.Rxd5#
- 1...Rc3
- 2.Rxd5#
- 1...Rc5
- 2.Rd3#
- 1...Rc6
- 2.Rd3#
- 2.Rxd5#
- 1...Rc7
- 2.Rd3#
- 2.Rxd5#
- 1...Rc8
- 2.Rd3#
- 2.Rxd5#
- 1...Sa2
- 2.Rd3#
- 2.Qxc4#
- 1...Sc2
- 2.Rd3#
- 2.Qxc4#
- 1...Sc6
- 2.Rd3#
- 2.Qxc4#
- 1...Sc3
- 2.Be3#
- 2.Bg7#
- 1...Sf4
- 2.Bg7#
- 1...Sb6
- 2.Bg7#
- 1...Sc7
- 2.Bg7#
- 1...Se7
- 2.Bg7#
- 1...Sf6!
- 1...Sxa6
- 1.Be3+?
- 1...Kc3
- 2.Qa1#
- 1...Sxe3!
- 1...Kc3
- 1.Bg7+?
- 1...Sf6
- 2.Bxf6#
- 1...Kxc5!
- 1...Sf6
- 1.Rd3+?
- 1...Sxd3
- 2.Qxc4#
- 1...Kxc5!
- 1...Sxd3
- 1.Qxb4?
- threat
- 2.Rd3#
- 2.Qxc4#
- 1...Rxb4
- 2.Rxd5#
- 1...Sxb4
- 2.Bg7#
- 1...Se3
- 2.Bxe3#
- 2.Bg7#
- 2.Rf4#
- 2.Qd2#
- 1...Sf4
- 2.Bg7#
- 2.Qxc4#
- 2.e3#
- 1...Sb6
- 2.Be3#
- 2.Bg7#
- 2.Rd3#
- 2.Qd2#
- 2.e3#
- 1...axb4!
- threat
- 1.Sce4?
- Keys
- 1.Rc3!
- threat
- 2.Rxc4#
- 1...Kxc3
- 2.Qa1#
- 1...Kxc5
- 2.Be3#
- 1...Rxc3
- 2.Rxd5#
- 1...Rxc5
- 2.Rd3#
- 1...Sxc3
- 2.e3#
- 1...Se3
- 2.Bg7#
- 1...Sf4
- 2.Bg7#
- 1...Sb6
- 2.Bg7#
- threat
- 1.Rc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(b);P_SPINS(a)::R1(G),XS(e)
- R(b);P_SPINS(a),SBLOCK,XS(F)::R1(C)
- S(a);OGATE,P_SPINR(b)::QAR1(E),XR(b)
- S(e);N_GUARD::B(H)
- Tries
- Try
- S(F);
- Vars
- R(b);P_SPINS(a)::R1(G),XS(e)
- R(b);P_SPINS(a)::R1(C)
- S(e);N_GUARD::B(H)
- Refutation
- P(g);
- Try
- S(F);
- Vars
- S(a);OGATE,P_SPINR(b),XS(F)::QAR1(E),XR(b)
- S(e);N_GUARD::B(H)
- R(b);P_SPINS(a)::R1(G),XS(e)
- R(b);P_SPINS(a)::R1(C)
- Refutation
- S(e);
- Try
- B(H);CHECK
- Vars
- K(c);S_FLIGHT::QAB(E)
- Refutation
- S(e);XB(H)
- Try
- B(H);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::B(H),XS(e)
- Refutation
- K(c);P_SPINS(e),S_FLIGHT,XS(F)
- Try
- R(C);CHECK
- Vars
- S(a);OGATE,P_SPINR(b),XR(C)::QAR1(E),XR(b)
- Refutation
- K(c);P_SPINS(e),S_FLIGHT,XS(F)
- Try
- Q(E);P_PINR(b),XS(a)
- Threat
- DUALS(2)
- Vars
- R(b);N_SPINR(b),XQ(E)::R1(G),XS(e)
- S(e);N_GUARD,N_SPINR(b),XQ(E)::B(H)
- Refutation
- P(d);N_SPINR(b),XQ(E)
- Try
- Actual
- R(C);
- Threat
- R1(C),XR(b)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(C)::QAB(E)
- K(c);P_SPINR(b),P_SPINS(e),S_FLIGHT,XS(F)::B(H)
- R(b);P_SPINS(a),SBLOCK,XR(C)::R1(G),XS(e)
- R(b);P_SPINS(a),SBLOCK,XS(F)::R1(C)
- S(e);N_GUARD,SBLOCK,XR(C)::P(A)
- S(e);N_GUARD::B(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).