MESON Chess Problem Database
Problem Display
PID: 72560 (1K6/3Np3/3pk1P1/8/Qp2B3/4R3/br2P3/Br6 w - - 0 1)
van Dijk, Johannes
Tijdschrift vd NSB, 1931
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Sf8#
- 1...Rd2
- 2.Sf8#
- 1...Rxe2
- 2.Sf8#
- 1...Rb3
- 2.Sf8#
- 1...d5
- 2.Qc6#
- 1...Rc2
- Tries
- 1.Qb5?
- threat
- 2.Bxb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rxa1
- 2.Bb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rxe2
- 2.Sf8#
- 2.Bf5#
- 2.Qf5#
- 1...d5
- 2.Qc6#
- 1...Rc1
- 2.Bb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rd1
- 2.Bb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Re1
- 2.Bb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rf1
- 2.Bb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 1...Rg1
- 2.Bb1#
- 2.Bh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rh1
- 2.Bb1#
- 2.Bxh1#
- 2.Bc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rc2
- 2.Sf8#
- 2.Bh1#
- 2.Bxc2#
- 2.Bg2#
- 2.Bd3#
- 2.Bf3#
- 2.Bf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qf5#
- 1...Rb3
- 2.Sf8#
- 2.Bd3#
- 2.Bf5#
- 2.Qf5#
- 1...Bd5!
- threat
- 1.Qc6?
- threat
- 2.Bxb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rxa1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rxe2
- 2.Sc5#
- 2.Sf8#
- 1...Rc1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rd1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Re1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rf1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rg1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rh1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 1...Rc2
- 2.Sf8#
- 2.Bxc2#
- 2.Bd3#
- 1...Rb3
- 2.Sc5#
- 2.Sf8#
- 2.Bd3#
- 1...Bd5!
- threat
- 1.Qb5?
- Keys
- 1.Qc2!
- threat
- 2.Bc6#
- 1...Kxd7
- 2.Qc8#
- 1...Rxc2
- 2.Sf8#
- 1...d5
- 2.Qc6#
- 1...Rb3
- 2.Sf8#
- 1...Bd5
- 2.Bf5#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(c);::S(G)
- R(c);XP(B)::S(G)
- P(e);OGATEB::QAR2(D)
- Tries
- Try
- Q(D);
- Threat
- DUALS(11)
- Vars
- P(e);OGATEB::QAR2(D)
- Refutation
- B(b);
- Try
- Q(D);P_PINP(e)
- Threat
- DUALS(3)
- Refutation
- B(b);
- Try
- Actual
- Q(D);
- Threat
- R(C)+B(E)
- Vars
- K(f);OGATEB,S_FLIGHT,XS(G)::QAB1(D)
- R(c);XQ(D)::S(G)
- P(e);OGATEB::QAR2(D)
- R(c);::S(G)
- B(b);SBLOCK::R(C)+B(E),DCHECK
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).