MESON Chess Problem Database
Problem Display
PID: 94999 (4B1N1/1n2pN2/1P2k1pb/4ppp1/4b3/3RQ3/8/2K1R3 w - - 0 1)
Rumyantsev, Sergei Yuryewitch
3rd Prize, Omskaya Pravda, 1970-1971
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Qxe5#
- 1...Bg2
- 2.Qxe5#
- 1...Bxd3
- 2.Qxe5#
- 1...Bf3
- 2.Qxe5#
- 1...Bd5
- 2.Qxe5#
- 1...Bc6
- 2.Qxe5#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sa5
- 2.Sd8#
- 1...Sc5
- 2.Sd8#
- 1...Sd6
- 2.Sd8#
- 1...Sd8
- 2.Sxd8#
- 1...Bh1
- Tries
- 1.Sfxh6?
- threat
- 2.Bd7#
- 2.Bf7#
- 1...Bxd3
- 2.Qxe5#
- 1...Bd5
- 2.Qxe5#
- 1...Bc6
- 2.Bf7#
- 2.Qxe5#
- 1...Sc5
- 2.Bf7#
- 1...Sd8
- 2.Bd7#
- 1...Sd6!
- threat
- 1.Sh8?
- threat
- 2.Bd7#
- 2.Bf7#
- 1...Bxd3
- 2.Qxe5#
- 1...Bd5
- 2.Qxe5#
- 1...f4
- 2.Bd7#
- 1...Bc6
- 2.Bf7#
- 2.Qxe5#
- 1...Sc5
- 2.Bf7#
- 1...Sd8
- 2.Bd7#
- 1...Sd6!
- threat
- 1.Qc5?
- threat
- 2.Qxe7#
- 2.Qxe5#
- 2.Qc8#
- 1...Bxd3
- 2.Rxe5#
- 2.Qxe5#
- 1...Sxc5
- 2.Sd8#
- 1...f4
- 2.Qxe5#
- 2.Qc8#
- 1...Bd5
- 2.Rxe5#
- 2.Qxe7#
- 2.Qxd5#
- 2.Qc8#
- 1...Bc6
- 2.Rxe5#
- 2.Qxe7#
- 2.Qxe5#
- 1...Bg7
- 2.Sxg5#
- 2.Qxe7#
- 2.Qc8#
- 1...Bf8
- 2.Sxg5#
- 2.Qxe5#
- 2.Qc8#
- 1...Sd6
- 2.Sd8#
- 2.Qxe5#
- 1...g4+!
- threat
- 1.Qh3?
- 1...Bxd3
- 2.Rxe5#
- 1...Bh1
- 2.Rxe5#
- 1...Bg2
- 2.Rxe5#
- 1...Bf3
- 2.Rxe5#
- 1...Bd5
- 2.Rxe5#
- 1...Bc6
- 2.Rxe5#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Sa5
- 2.Sd8#
- 1...Sc5
- 2.Sd8#
- 1...Sd6
- 2.Sd8#
- 1...Sd8
- 2.Sxd8#
- 1...g4+!
- 1...Bxd3
- 1.Sfxh6?
- Keys
- 1.Qxg5!
- 1...Bxg5+
- 2.Sxg5#
- 1...Bxd3
- 2.Rxe5#
- 1...Bh1
- 2.Rxe5#
- 1...Bg2
- 2.Rxe5#
- 1...Bf3
- 2.Rxe5#
- 1...Bd5
- 2.Rxe5#
- 1...Bc6
- 2.Rxe5#
- 1...Bg7
- 2.Qxe7#
- 1...Bf8
- 2.Qxg6#
- 1...Sa5
- 2.Sd8#
- 1...Sc5
- 2.Sd8#
- 1...Sd6
- 2.Sd8#
- 1...Sd8
- 2.Sxd8#
- 1...f4
- 2.Qxe5#
- 1...Bxg5+
- 1.Qxg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- B(a);OGATE,P_SPINP(b),XR(C)::QAR1(D),XP(b)
- B(g);N_GUARD::S(F),XP(d)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Tries
- Try
- S(F);XB(g)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,P_SPINP(b),XR(C)::QAR1(D),XP(b)
- B(a);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- S(h);::B(G)
- Refutation
- S(h);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,P_SPINP(b),XR(C)::QAR1(D),XP(b)
- B(a);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- P(c);::B(G)
- S(h);::B(G)
- Refutation
- S(h);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- S(h);N_GUARD,XQ(D)::S(F)
- Refutation
- P(d);CHECK
- Try
- Q(D);P_PINP(c)
- Vars
- B(a);N_SPINP(c),OGATE,P_SPINP(b),XR(C)::R1(B),XP(b)
- B(a);N_SPINP(c),OGATE,P_SPINP(b)::R1(B),XP(b)
- B(g);N_GUARD::S(F),XP(d)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(d);CHECK,N_SPINP(c)
- Try
- Actual
- Q(D);P_SPINQ(D),XP(d)
- Vars
- B(g);CHECK,XQ(D)::S(F),XB(g)
- B(a);OGATE,P_SPINP(b),XR(C)::R1(B),XP(b)
- B(a);OGATE,P_SPINP(b)::R1(B),XP(b)
- B(g);N_PINQ(D)::QAR1(D),XP(i)
- B(g);N_PINQ(D)::QAR2(D),XP(f)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(c);N_PINQ(D)::QAR1(D),XP(b)
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).