MESON Chess Problem Database
Problem Display
PID: 103740 (3Q4/2npn1N1/P2k4/R1pP4/5P2/1P3K2/2N5/3RB3 w - - 0 1)
Rumyantsev, Sergei Yuryewitch
64 Shakhmatnoe obozrenie, 1984
#2
11 + 5
| 5454 | Near Snap | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb5
- 2.Se8#
- 1...Sxa6
- 2.Se8#
- 1...Se6
- 2.Se8#
- 1...Sa8
- 2.Se8#
- 1...Se8
- 2.Sxe8#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c4
- 2.Bb4#
- 1...Sb5
- Tries
- 1.Sb4?
- 1...Scxd5
- 2.Qb8#
- 1...Sxa6
- 2.Se8#
- 1...Sexd5
- 2.Qf8#
- 1...cxb4
- 2.Bxb4#
- 1...Sb5
- 2.Se8#
- 1...Se6
- 2.Se8#
- 1...Sa8
- 2.Se8#
- 1...Se8
- 2.Sxe8#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c4!
- 1...Scxd5
- 1.Rb5?
- 1...Sxb5
- 2.Se8#
- 1...Sxa6
- 2.Se8#
- 1...Sexd5
- 2.Rb6#
- 1...Se6
- 2.Se8#
- 1...Sa8
- 2.Se8#
- 1...Se8
- 2.Sxe8#
- 1...Sf5
- 2.Sxf5#
- 2.Rb6#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 2.Rb6#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 2.Rb6#
- 1...c4
- 2.Bb4#
- 1...Scxd5!
- 1...Sxb5
- 1.Qb8?
- threat
- 2.Se8#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...Sxd5!
- threat
- 1.Qc8?
- 1...Scxd5
- 2.Qxc5#
- 1...Sxa6
- 2.Se8#
- 1...Sxc8
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...Sb5
- 2.Se8#
- 1...Se6
- 2.Se8#
- 1...Sa8
- 2.Se8#
- 2.Qxc5#
- 1...Se8
- 2.Sxe8#
- 2.Qxc5#
- 1...c4
- 2.Bb4#
- 1...Sexd5!
- 1...Scxd5
- 1.Qf8?
- threat
- 2.Sf5#
- 1...Sxa6
- 2.Se8#
- 1...Sb5
- 2.Se8#
- 1...Se6
- 2.Se8#
- 1...Sa8
- 2.Se8#
- 1...Se8
- 2.Sxe8#
- 1...Sxd5!
- threat
- 1.Sb4?
- Keys
- 1.Sd4!
- 1...Kxd5
- 2.Qxd7#
- 1...Scxd5
- 2.Se8#
- 1...Sxa6
- 2.Sb5#
- 1...Sexd5
- 2.Sgf5#
- 1...cxd4
- 2.Bb4#
- 1...Sb5
- 2.Sxb5#
- 1...Se6
- 2.Sb5#
- 1...Sa8
- 2.Sb5#
- 1...Se8
- 2.Sb5#
- 1...Sf5
- 2.Sdxf5#
- 1...Sc6
- 2.Sdf5#
- 1...Sg6
- 2.Sdf5#
- 1...Sc8
- 2.Sdf5#
- 1...Sg8
- 2.Sdf5#
- 1...c4
- 2.Bb4#
- 1...Kxd5
- 1.Sd4!
Anticipated by 55161(1962)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::S(J)
- S(c);N_GUARD,XP(I)::S(J)
- S(c);N_GUARD::S(J),XS(c)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- P(a);OGATEB::B(B)
- Tries
- Try
- S(C);
- Vars
- S(c);OGATEB,P_SPINS(c),XP(H)::QAB(K)
- S(c);N_GUARD,XP(I)::S(J)
- S(e);OGATEB,P_SPINS(e),XP(H)::QAB(K)
- P(a);OGATE,XS(C)::B(B),XP(a)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- Refutation
- P(a);
- Try
- R(G);
- Vars
- S(c);N_GUARD,XR(G)::S(J)
- S(c);N_GUARD,XP(I)::S(J)
- S(e);N_GUARD,P_SPINS(e),XP(H)::R(G)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- S(e);N_GUARD::S(J)
- P(a);OGATEB::B(B)
- Refutation
- S(c);P_SPINS(c),XP(H)
- Try
- Q(K);N_PINP(d),P_PINS(c)
- Threat
- S(J)
- Vars
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- Refutation
- S(e);N_SPINS(c),P_SPINS(e),XP(H)
- Try
- Q(K);N_PINP(d)
- Vars
- S(c);OGATE,P_SPINS(c),XP(H)::QAB1(K),XP(a)
- S(c);N_GUARD,XP(I)::S(J)
- S(e);N_GUARD,XQ(K)::S(J)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- S(c);N_GUARD::S(J)
- P(a);OGATEB::B(B)
- Refutation
- S(e);P_SPINS(e),XP(H)
- Try
- Q(K);N_PINP(d),P_PINS(e)
- Threat
- S(J)
- Vars
- S(c);N_GUARD,XP(I)::S(J)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- S(c);N_SPINS(e),P_SPINS(c),XP(H)
- Try
- Actual
- S(C);
- Vars
- K(b);N_SPINP(d),P-FLIGHT,P_SPINP(a),XP(H)::QAR2(K),XP(d)
- S(c);N_GUARD,SBLOCK,XP(H)::S(J)
- S(c);N_GUARD,XP(I)::S(C)
- S(e);N_GUARD,SBLOCK,XP(H)::S(J)
- P(a);OGATEB,XS(C)::B(B)
- S(c);N_GUARD::S(C),XS(c)
- S(c);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- S(e);N_GUARD::S(C)
- P(a);OGATEB::B(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).