MESON Chess Problem Database
Problem Display
PID: 87267 (b1B2K2/1n3RP1/N1pk2r1/p2pp1pR/P2pP3/3P1p2/1Q3B2/8 w - - 0 1)
Cyrulik, Stepan Pavlovich
Likhomanov, Yuri Evstafevich
Hlas l'udu, 1992
#2
11 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Rd7#
- 1...Rf6
- 2.Rxf6#
- 1...Rh6
- 2.Rxh6#
- 1...Rxg7
- 2.Rf6#
- 1...Sc5
- 2.Qb8#
- 1...Sd8
- 2.Qb8#
- 1...c5
- 2.Qb6#
- 1...Re6
- Tries
- 1.Bg3?
- 1...Rxg7
- 2.Rf6#
- 1...dxe4
- 2.Qxd4#
- 1...c5
- 2.Qb6#
- 1...Re6
- 2.Rd7#
- 1...Rf6
- 2.Rxf6#
- 1...Rh6
- 2.Rxh6#
- 1...Sc5
- 2.Qb8#
- 1...Sd8
- 2.Qb8#
- 1...g4
- 2.Bxe5#
- 1...f2!
- 1...Rxg7
- 1.Bxd4?
- threat
- 2.Bxe5#
- 1...exd4
- 2.Qh2#
- 1...c5
- 2.Qb6#
- 1...Re6
- 2.Rd7#
- 1...dxe4!
- threat
- 1.Bg4?
- threat
- 2.Rd7#
- 1...Rxg7
- 2.Rf6#
- 1...c5
- 2.Qb6#
- 1...Rf6
- 2.Rxf6#
- 1...Sc5
- 2.Qb8#
- 1...Re6!
- threat
- 1.Bf5?
- threat
- 2.Rd7#
- 1...Rxg7
- 2.Rf6#
- 1...c5
- 2.Qb6#
- 1...Rf6
- 2.Rxf6#
- 1...Sc5
- 2.Qb8#
- 1...Re6!
- threat
- 1.Qa3+?
- 1...Sc5
- 2.Qxc5#
- 1...c5!
- 1...Sc5
- 1.Qb3?
- 1...Rxg7
- 2.Rf6#
- 1...dxe4
- 2.Rd7#
- 1...c5
- 2.Qxd5#
- 2.Qb6#
- 1...Re6
- 2.Rd7#
- 1...Rf6
- 2.Rxf6#
- 1...Rh6
- 2.Rxh6#
- 1...Sc5
- 2.Qb8#
- 1...Sd8
- 2.Qb8#
- 1...g4!
- 1...Rxg7
- 1.Qb4+?
- 1...Sc5
- 2.Qxc5#
- 2.Qb8#
- 1...c5
- 2.Qb6#
- 1...axb4!
- 1...Sc5
- 1.Qxb7?
- threat
- 2.Qc7#
- 2.Qd7#
- 2.Qe7#
- 2.Qb8#
- 1...dxe4
- 2.Qd7#
- 1...Re6
- 2.Rd7#
- 2.Qc7#
- 2.Qd7#
- 2.Qb8#
- 1...c5
- 2.Qc7#
- 2.Qd7#
- 1...Bxb7!
- threat
- 1.g8Q?
- threat
- 2.Rd7#
- 2.Qxg6#
- 1...dxe4
- 2.Rd7#
- 1...c5
- 2.Qb6#
- 2.Qxg6#
- 1...Re6
- 2.Rd7#
- 1...Rf6
- 2.Rxf6#
- 1...Rh6
- 2.Rxh6#
- 2.Rd7#
- 1...Rg7
- 2.Rf6#
- 1...Sc5
- 2.Qb8#
- 1...Sd8
- 2.Rd7#
- 2.Qb8#
- 1...Rxg8+!
- threat
- 1.g8B?
- threat
- 2.Rd7#
- 1...c5
- 2.Qb6#
- 1...Rf6
- 2.Rxf6#
- 1...Rg7
- 2.Rf6#
- 1...Sc5
- 2.Qb8#
- 1...Rxg8+!
- threat
- 1.Bg3?
- Keys
- 1.Qxd4!
- 1...Rxg7
- 2.Rf6#
- 1...exd4
- 2.Bg3#
- 1...c5
- 2.Qxd5#
- 1...g4
- 2.Qxe5#
- 1...Re6
- 2.Rd7#
- 1...Rf6
- 2.Rxf6#
- 1...Rh6
- 2.Rxh6#
- 1...Sc5
- 2.Qxc5#
- 1...Sd8
- 2.Qc5#
- 1...Rxg7
- 1.Qxd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(i);SBLOCK::R1(H)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- R(i);OGATEB::R(F),XR(i)
- R(i);N_GUARD,XP(I)::R(H)
- S(j);OGATE::QAB(A)
- P(g);OGATEB::QAR2(A)
- Tries
- Try
- B(B);P_PINP(e)
- Vars
- R(i);N_GUARD,XP(I)::R(H)
- P(d);OGATEB,XP(E)::QAR2(A),XP(b)
- P(g);OGATEB::QAR2(A)
- R(i);SBLOCK::R1(H)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- R(i);OGATEB::R(F),XR(i)
- S(j);OGATE::QAB(A)
- P(f);::B(B),XP(e)
- Refutation
- P(a);
- Try
- B(B);XP(b)
- Threat
- B(B),XP(e)
- Vars
- P(e);OGATEB,XB(B)::QAB(A)
- P(g);OGATEB::QAR2(A)
- R(i);SBLOCK::R1(H)
- Refutation
- P(d);XP(E)
- Try
- B(J);
- Threat
- R1(H)
- Vars
- R(i);N_GUARD,XP(I)::R(H)
- P(g);OGATEB::QAR2(A)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- S(j);OGATE::QAB(A)
- Refutation
- R(i);
- Try
- B(J);
- Threat
- R1(H)
- Vars
- R(i);N_GUARD,XP(I)::R(H)
- P(g);OGATEB::QAR2(A)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- S(j);OGATE::QAB(A)
- Refutation
- R(i);
- Try
- Q(A);CHECK
- Vars
- S(j);N_GUARD,P_SPINS(j)::QAB1(A),XS(j)
- Refutation
- P(g);P_SPINP(g)
- Try
- Q(A);
- Vars
- R(i);N_GUARD,XP(I)::R(H)
- P(d);XP(E)::R1(H)
- R(i);SBLOCK::R1(H)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- R(i);OGATEB::R(F),XR(i)
- S(j);OGATE::QAB(A)
- Refutation
- P(f);
- Try
- Q(A);CHECK
- Vars
- P(g);OGATEB,P_SPINP(g)::QAR2(A)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);XS(j)
- Threat
- DUALS(4)
- Vars
- P(d);XP(E)::QAR1(A)
- Refutation
- B(k);XQ(A)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- P(d);XP(E)::R1(H)
- R(i);::R1(H)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- R(i);N_GUARD::R(H)
- S(j);OGATE::QAB(A)
- Refutation
- R(i);CHECK,XQ(I)
- Try
- P(I);
- Threat
- R1(H)
- Vars
- P(g);OGATEB::QAR2(A)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- R(i);N_GUARD::R(H)
- S(j);OGATE::QAB(A)
- Refutation
- R(i);CHECK,XB(I)
- Try
- Actual
- Q(A);P_PINP(d),XP(b)
- Vars
- R(i);N_GUARD,XP(I)::R(H)
- P(e);N_SPINP(d),OGATEB,XQ(A)::B(B)
- P(g);N_GUARD::QAR1(A),XP(d)
- P(f);::QAB1(A),XP(e)
- R(i);SBLOCK::R1(H)
- R(i);N_GUARD,P_PINR(H)::R(H),XR(i)
- R(i);OGATEB::R(F),XR(i)
- S(j);N_GUARD::QAB1(A),XS(j)
- S(j);N_GUARD::QAB1(A)
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).