MESON Chess Problem Database
Problem Display
PID: 15618 (7B/b7/4b3/6n1/2B1k2r/3RP3/3P4/1K3Q2 w - - 0 1)
Rychkov, Vladimir Nikolaevich
Na Smenu!, 1986
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Rh2
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rh5
- 2.Qf4#
- 1...Rh6
- 2.Qf4#
- 1...Rh7
- 2.Qf4#
- 1...Rxh8
- 2.Qf4#
- 1...Bh3
- 2.Bd5#
- 1...Bg4
- 2.Bd5#
- 2.Qf4#
- 1...Bd5
- 2.Bxd5#
- 1...Bf5
- 2.Bd5#
- 1...Bd7
- 2.Bd5#
- 1...Bc8
- 2.Bd5#
- 1...Bxe3
- 2.Rxe3#
- 1...Bd4
- 2.Rxd4#
- 1...Bb8
- 2.Rd4#
- 1...Rh2
- Tries
- 1.Rd6?
- threat
- 2.Bd3#
- 1...Rxh8
- 2.Qf4#
- 1...Bxc4!
- threat
- 1.Rd6?
- Keys
- 1.Rd5!
- threat
- 2.Re5#
- 1...Rxh8
- 2.Qf4#
- 1...Bxd5
- 2.Bd3#
- 1...Bxe3
- 2.d3#
- 1...Bd4
- 2.Rxd4#
- 1...Bb8
- 2.Rd4#
- 1...Sf3
- 2.Qd3#
- 1...Sf7
- 2.Qg2#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- R(b);N_GUARD::QAR1(B)
- R(b);N_GUARD::QAR1(B),XR(b)
- R(b);N_GUARD,XB(G)::QAR1(B)
- B(d);N_GUARD::B(F)
- B(d);N_GUARD::B(F),XB(d)
- B(e);OGATE,XP(E)::R1(D),XB(e)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- Tries
- Try
- R(D);
- Threat
- B(F)
- Vars
- R(b);N_GUARD,XB(G)::QAR1(B)
- Refutation
- B(d);XB(F)
- Try
- Actual
- R(D);
- Threat
- R1(D)
- Vars
- R(b);N_GUARD,XB(G)::QAR1(B)
- B(d);SBLOCK,XR(D)::B(F)
- B(e);SBLOCK,XP(E)::P(C)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(c);SBLOCK::QAB1(B)
- S(c);N_GUARD::QAB(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).