MESON Chess Problem Database
Problem Display
PID: 66952 (8/4p3/4P3/4RP2/2pr1N2/B1kP1p2/P2R4/n2K2Q1 w - - 0 1)
Vladimirov, Yakov Georgevich
3rd Place, USSR Championship, 1978
#2
10 + 6
| 15440 | Ukroshyenie Shakhmatnogo Pegasa (Vladimirov, YG) | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Sd5#
- 1...Rd5
- 2.Sxd5#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rc2#
- 1...f2
- 2.Se2#
- 1...Re4
- Tries
- 1.Re3?
- 1...Rxd3
- 2.Qg7#
- 1...Rxf4
- 2.d4#
- 1...Re4
- 2.dxe4#
- 1...Rd5
- 2.d4#
- 1...Rd6
- 2.d4#
- 1...Rd7
- 2.d4#
- 1...Rd8
- 2.d4#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rc2#
- 1...f2
- 2.Se2#
- 1...cxd3!
- 1...Rxd3
- 1.Re4?
- threat
- 2.Qxd4#
- 1...Rxe4
- 2.Sd5#
- 1...Rd5
- 2.Sxd5#
- 2.Rxc4#
- 1...Rd6
- 2.Rxc4#
- 1...Rd7
- 2.Rxc4#
- 1...Rd8
- 2.Rxc4#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rc2#
- 1...f2
- 2.Se2#
- 1...Rxd3!
- threat
- 1.Rb5?
- threat
- 2.Bb2#
- 2.Bb4#
- 1...Sc2
- 2.Bb2#
- 2.Rxc2#
- 1...cxd3!
- threat
- 1.Rc5?
- 1...Rxd3
- 2.Rxd3#
- 1...Re4
- 2.Sd5#
- 1...Rd5
- 2.Sxd5#
- 2.Rxc4#
- 1...Rd6
- 2.Rxc4#
- 1...Rd7
- 2.Rxc4#
- 1...Rd8
- 2.Rxc4#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rc2#
- 1...f2
- 2.Se2#
- 1...Rxf4!
- 1...Rxd3
- 1.Qe3?
- 1...Rxd3
- 2.Sd5#
- 1...Rxf4
- 2.d4#
- 1...Re4
- 2.Sd5#
- 2.dxe4#
- 1...Rd5
- 2.Sxd5#
- 2.d4#
- 1...Rd6
- 2.d4#
- 1...Rd7
- 2.d4#
- 1...Rd8
- 2.d4#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rc2#
- 1...f2
- 2.Se2#
- 1...cxd3!
- 1...Rxd3
- 1.Re3?
- Keys
- 1.Qg7!
- 1...Rxd3
- 2.Re3#
- 1...Rxf4
- 2.Re4#
- 1...cxd3
- 2.Rc5#
- 1...Re4
- 2.Rxe4#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Rd5#
- 1...Rd7
- 2.Rd5#
- 1...Rd8
- 2.Rd5#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rc2#
- 1...f2
- 2.Se2#
- 1...Rxd3
- 1.Qg7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::S(G)
- R(e);N_GUARD::S(G),XR(e)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- P(c);N_GUARD::S(G)
- Tries
- Try
- R(H);
- Vars
- R(e);OGATEB,P_PINR(D),P_SPINR(e),XP(F)::QAB(B)
- R(e);OGATE,XS(G)::R(H)+P(F)
- R(e);OGATE::R(H)+P(F),XR(e)
- R(e);OGATE::R(H)+P(F)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- P(c);N_GUARD::S(G)
- Refutation
- P(d);P_SPINP(d),XP(F)
- Try
- R(H);
- Threat
- QAB1(B),XR(e)
- Vars
- R(e);N_GUARD,XR(H)::S(G)
- R(e);OGATE::R1(H),XP(d)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- P(c);N_GUARD::S(G)
- Refutation
- R(e);P_PINR(D),XP(F)
- Try
- R(H);
- Threat
- DUALS(2)
- Refutation
- P(d);XP(F)
- Try
- R(H);P_PINP(d)
- Vars
- R(e);OGATE,P_PINR(D),XP(F)::R1(D),XR(e)
- R(e);N_GUARD::S(G)
- R(e);N_GUARD::R1(H),XP(d)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- P(c);N_GUARD::S(G)
- Refutation
- R(e);XS(G)
- Try
- Q(B);
- Vars
- R(e);N_GUARD,P_PINR(D),P_SPINR(e),XP(F)::S(G)
- R(e);OGATE,XS(G)::QAR(B)+P(F)
- R(e);OGATE::QAR(B)+P(F)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- P(c);N_GUARD::S(G)
- Refutation
- P(d);P_SPINP(d),XP(F)
- Try
- Actual
- Q(B);
- Vars
- R(e);OGATEB,P_PINR(D),XP(F)::QAB(B)+R(H)
- R(e);OGATEB,XS(G)::QAB(B)+R(H)
- P(d);OGATEB,XP(F)::R(H)
- R(e);OGATEB::QAB(B)+R(H),XR(e)
- R(e);OGATEB::QAB(B)+R(H)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- P(c);N_GUARD::S(G)
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).