MESON Chess Problem Database
Problem Display
PID: 226552 (4B3/1p5b/5B1p/2R5/4k1NK/2r2p1N/2P1n3/4Qn2 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Sachova skladba, 2005
#2
8 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sgf2#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...Se3
- 2.Sgf2#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Re3
- Tries
- 1.Qd2?
- threat
- 2.Shf2#
- 2.Sgf2#
- 2.Re5#
- 2.Qd5#
- 1...Rxc5
- 2.Qd3#
- 1...f2
- 2.Qd5#
- 1...Rd3
- 2.Shf2#
- 2.Sgf2#
- 2.Qxd3#
- 2.cxd3#
- 1...Re3
- 2.Sgf2#
- 2.Re5#
- 2.Qd5#
- 1...Bg8
- 2.Shf2#
- 2.Sgf2#
- 2.Bg6#
- 2.Re5#
- 1...Se3
- 2.Sgf2#
- 2.Re5#
- 1...Sd4
- 2.Shf2#
- 2.Sgf2#
- 2.Re5#
- 2.Qf4#
- 2.Qxd4#
- 1...Sf4
- 2.Shf2#
- 2.Sgf2#
- 2.Re5#
- 2.Qxf4#
- 2.Qd4#
- 1...Sxd2!
- threat
- 1.Qxc3?
- threat
- 2.Sgf2#
- 2.Re5#
- 2.Qe5#
- 2.Qd3#
- 1...Sc1
- 2.Sgf2#
- 2.Re5#
- 2.Qb4#
- 2.Qd4#
- 2.Qe5#
- 2.Qc4#
- 1...Sd4
- 2.Sgf2#
- 2.Re5#
- 2.Qxd4#
- 2.Qd3#
- 1...Sf4
- 2.Shf2#
- 2.Sgf2#
- 2.Re5#
- 2.Qb4#
- 2.Qd4#
- 2.Qe5#
- 2.Qc4#
- 1...f2
- 2.Sgxf2#
- 2.Re5#
- 2.Qd3#
- 1...Sxc3!
- threat
- 1.Qd1?
- threat
- 2.Re5#
- 2.Qd5#
- 1...Rxc5
- 2.Qd3#
- 1...f2
- 2.Qd5#
- 1...Rd3
- 2.Qxd3#
- 2.cxd3#
- 1...Bg8
- 2.Bg6#
- 2.Re5#
- 1...Se3
- 2.Sgf2#
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 2.Qxd4#
- 1...Sf4
- 2.Shf2#
- 2.Re5#
- 2.Qd4#
- 1...Sd2!
- threat
- 1.Qxe2+?
- 1...Re3
- 2.Sgf2#
- 2.Qc4#
- 1...Se3
- 2.Sgf2#
- 1...fxe2!
- 1...Re3
- 1.Qd2?
- Keys
- 1.Qb1!
- threat
- 2.Qxb7#
- 1...Rxc2
- 2.Qxc2#
- 1...Rxc5
- 2.c4#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Bg8
- 2.Bg6#
- 1...Se3
- 2.Sgf2#
- 1...Sd4
- 2.Re5#
- 1...Sf4
- 2.Shf2#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(c);N_SPINS(b),SBLOCK::S(D)
- B(h);N_GUARD::B(H),XB(h)
- B(h);N_GUARD::B(H)
- S(a);N_SPINS(b),SBLOCK::S(D)
- P(g);N_GUARD::B(H)
- Tries
- Try
- Q(A);N_PINS(b)
- Threat
- DUALS(4)
- Vars
- R(c);N_GUARD,XR(F)::QAB1(A)
- P(d);::QAB1(A)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);N_PINS(b),XR(c)
- Threat
- DUALS(4)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XR(F)::QAB1(A)
- P(d);::QAB1(A)
- Refutation
- S(a);
- Try
- Q(A);CHECK,XS(b)
- Vars
- S(a);P_SPINS(a)::S(D)
- Refutation
- P(d);XQ(A)
- Try
- Actual
- Q(A);N_PINS(b)
- Threat
- QAB(A),XP(g)
- Vars
- R(c);OGATE,P_SPINR(c),XP(B)::QAB(A),XR(c)
- R(c);OGATE,XR(F)::QAB(A)+P(B)
- R(c);OGATE::QAB(A)+P(B),XR(c)
- R(c);OGATE::P(B),XR(c)
- B(h);N_GUARD::B(H)
- S(a);SBLOCK::S(D)
- S(b);SBLOCK::R1(F)
- S(b);SBLOCK::S(C)
- P(g);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).