MESON Chess Problem Database
Problem Display
PID: 18105 (1N4B1/3pBQ2/1p1prp2/1Pk2N1R/8/K1Pp4/3P1P2/8 w - - 0 1)
Dokic, Dragoljub
Problem (Zagreb), 1953
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Se3#
- 2.Sxd6#
- 1...Kxb5
- 2.Sxd6#
- 1...Re1
- 2.Qc4#
- 2.Qd5#
- 1...Re2
- 2.Qc4#
- 2.Qd5#
- 1...Re3
- 2.Qc4#
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Re5
- 2.Qc4#
- 1...Rxe7
- 2.Qc4#
- 2.Qd5#
- 1...Kc4
- Tries
- 1.Kb3?
- 1...Kxb5
- 2.Sd4#
- 2.Sxd6#
- 1...Rxe7
- 2.Qc4#
- 2.Qd5#
- 1...Re1
- 2.Qc4#
- 2.Qd5#
- 1...Re2
- 2.Qc4#
- 2.Qd5#
- 1...Re3
- 2.Qc4#
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Re5
- 2.Qc4#
- 1...Kd5!
- 1...Kxb5
- 1.Se3+?
- 1...Re5
- 2.Qc4#
- 1...f5!
- 1...Re5
- 1.Sxd6+?
- 1...Re5
- 2.Sa6#
- 2.Sxd7#
- 2.Qc4#
- 1...f5!
- 1...Re5
- 1.Sxd7+?
- 1...Kc4
- 2.Se3#
- 2.Sxd6#
- 1...Kd5
- 2.Qxe6#
- 1...Kxb5!
- 1...Kc4
- 1.Bf8?
- 1...Kc4
- 2.Se3#
- 2.Sxd6#
- 1...Kxb5
- 2.Sxd6#
- 1...Re1
- 2.Qc4#
- 2.Qd5#
- 1...Re2
- 2.Qc4#
- 2.Qd5#
- 1...Re3
- 2.Qc4#
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Re5
- 2.Qc4#
- 1...Re7
- 2.Qc4#
- 2.Qd5#
- 1...Re8
- 2.Qc4#
- 2.Qd5#
- 1...Kd5!
- 1...Kc4
- 1.Qxe6?
- threat
- 2.Qc4#
- 2.Qd5#
- 1...Kxb5
- 2.Sd4#
- 2.Sxd6#
- 2.Qd5#
- 1...dxe6!
- threat
- 1.f4?
- 1...Kc4
- 2.Se3#
- 2.Sxd6#
- 1...Kxb5
- 2.Sxd6#
- 1...Rxe7
- 2.Qc4#
- 2.Qd5#
- 1...Re1
- 2.Qc4#
- 2.Qd5#
- 1...Re2
- 2.Qc4#
- 2.Qd5#
- 1...Re3
- 2.Qc4#
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Re5
- 2.Qc4#
- 1...Kd5!
- 1...Kc4
- 1.c4?
- 1...Rxe7
- 2.Sa6#
- 2.Qd5#
- 1...Re1
- 2.Sa6#
- 2.Sxd7#
- 2.Bxd6#
- 2.Qd5#
- 1...Re2
- 2.Sa6#
- 2.Sxd7#
- 2.Bxd6#
- 2.Qd5#
- 1...Re3
- 2.Sa6#
- 2.Sxd7#
- 2.Bxd6#
- 2.Qd5#
- 1...Re4
- 2.Sa6#
- 2.Sxd7#
- 2.Bxd6#
- 2.Qd5#
- 1...Re5
- 2.Sa6#
- 2.Sxd7#
- 2.Bxd6#
- 1...Kxc4!
- 1...Rxe7
- 1.Kb3?
- Keys
- 1.f3!
- 1...Kc4
- 2.Se3#
- 2.Sxd6#
- 1...Kxb5
- 2.Sxd6#
- 1...Kd5
- 2.Se3#
- 1...Rxe7
- 2.Qc4#
- 2.Qd5#
- 1...Re1
- 2.Qc4#
- 2.Qd5#
- 1...Re2
- 2.Qc4#
- 2.Qd5#
- 1...Re3
- 2.Qc4#
- 2.Qd5#
- 1...Re4
- 2.Qd5#
- 1...Re5
- 2.Qc4#
- 1...Kc4
- 1.f3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);N_SPINP(d),P-FLIGHT,XP(E)::R(G)+S(F),DCHECK,XP(d)
- R(e);OGATE::QAR1(I)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- R(e);OGATE::QAR1(I)
- Refutation
- K(b);N_SPINP(d),P-FLIGHT,P_SPINR(e)
- Try
- S(F);CHECK
- Vars
- R(e);OGATE,P_SPINR(e)::QAR1(I)
- Refutation
- P(f);N_SPINP(d),P_SPINP(f)
- Try
- S(F);CHECK,XP(d)
- Refutation
- P(f);P_SPINP(f)
- Try
- S(J);CHECK,XP(g)
- Vars
- K(b);N_SPINP(d),P-FLIGHT,P_SPINR(e)::QAB1(I),XR(e)
- Refutation
- K(b);N_SPINP(d),P-FLIGHT,XP(E)
- Try
- B(H);
- Vars
- K(b);N_SPINP(d),P-FLIGHT,XP(E)::R(G)+S(F),DCHECK,XP(d)
- R(e);OGATE::QAR1(I)
- Refutation
- K(b);N_SPINP(d),P-FLIGHT,P_SPINR(e)
- Try
- Q(I);XR(e)
- Threat
- DUALS(2)
- Refutation
- P(g);XQ(I)
- Try
- P(B);
- Vars
- K(b);N_SPINP(d),P-FLIGHT,XP(E)::R(G)+S(F),DCHECK,XP(d)
- R(e);OGATE::QAR1(I)
- Refutation
- K(b);N_SPINP(d),P-FLIGHT,P_SPINR(e)
- Try
- P(D);
- Refutation
- K(b);N_SPINP(d),P-FLIGHT,P_SPINR(e),XP(D)
- Try
- Actual
- P(B);
- Vars
- K(b);N_SPINP(d),P-FLIGHT,XP(E)::R(G)+S(F),DCHECK,XP(d)
- K(b);N_SPINP(d),P-FLIGHT,P_SPINR(e)::R(G)+S(F),DCHECK
- R(e);OGATE::QAR1(I)
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).