MESON Chess Problem Database
Problem Display
PID: 62999 (2k5/p1B5/4P3/2RB1p2/2N1r3/4P1q1/KP1Q4/8 w - - 0 1)
Okkinga, AS
Tijdschrift vd NSB, 1896
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qh4
- 2.Sd6#
- 1...Qd6
- 2.Sxd6#
- 1...Qg1
- 2.Sd6#
- 1...Qg2
- 2.Sd6#
- 1...Qxe3
- 2.Sd6#
- 1...Qf3
- 2.Sd6#
- 1...Qh3
- 2.Sd6#
- 1...Qg4
- 2.Sd6#
- 1...Qg5
- 2.Sd6#
- 1...Qg6
- 2.Sd6#
- 1...Qg7
- 2.Sd6#
- 1...Qg8
- 2.Sd6#
- 1...Rf4
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 1...f4
- 2.Sd6#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Qe1
- Tries
- 1.Ba5+?
- 1...Kb8
- 2.Qb4#
- 1...Qc7!
- 1...Kb8
- 1.Qb4?
- threat
- 2.Bb7#
- 2.Qb7#
- 2.Qb8#
- 1...Rxe6
- 2.Bxe6#
- 1...Qxc7!
- threat
- 1.Qa5?
- threat
- 2.Bxg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qxc7
- 2.Qxc7#
- 1...Qxe3
- 2.Sd6#
- 2.Qa6#
- 1...Rxc4
- 2.Qa6#
- 1...Qe1
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qf2
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qh2
- 2.Bxh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qf4
- 2.Bxf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qh4
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qe5
- 2.Bxe5#
- 2.Bd6#
- 2.Qa6#
- 1...Qd6
- 2.Sxd6#
- 2.Bxd6#
- 1...Qg1
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qg2
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qf3
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qh3
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qg4
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qg5
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qg6
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Qg7
- 2.Sd6#
- 2.Qa6#
- 1...Qg8
- 2.Sd6#
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Rf4
- 2.Sd6#
- 2.Bxf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...Re5
- 2.Sd6#
- 2.Bxe5#
- 2.Bd6#
- 2.Qa6#
- 1...f4
- 2.Sd6#
- 2.Bxf4#
- 2.Be5#
- 2.Bd6#
- 2.Qa6#
- 1...a6
- 2.Sb6#
- 2.Bxg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Qxa6#
- 1...Rxe6!
- threat
- 1.Ba5+?
- Keys
- 1.Qg2!
- 1...Qxc7
- 2.Qg8#
- 1...Qxg2
- 2.Sd6#
- 1...Qxe3
- 2.Sd6#
- 2.Qg8#
- 1...Rxe3
- 2.Bb7#
- 1...Rxc4
- 2.Bb7#
- 1...Rxe6
- 2.Bxe6#
- 1...Qe1
- 2.Sd6#
- 2.Qg8#
- 1...Qf2
- 2.Sd6#
- 2.Qg8#
- 1...Qh2
- 2.Qg8#
- 1...Qf4
- 2.Qg8#
- 1...Qh4
- 2.Sd6#
- 1...Qe5
- 2.Qg8#
- 1...Qd6
- 2.Sxd6#
- 1...Qf3
- 2.Sd6#
- 2.Qg8#
- 1...Qh3
- 2.Sd6#
- 2.Qg8#
- 1...Qg4
- 2.Sd6#
- 1...Qg5
- 2.Sd6#
- 1...Qg6
- 2.Sd6#
- 1...Qg7
- 2.Sd6#
- 1...Qg8
- 2.Sd6#
- 2.Qxg8#
- 1...Rd4
- 2.Bb7#
- 1...Rf4
- 2.Sd6#
- 2.Bb7#
- 1...Rg4
- 2.Bb7#
- 1...Rh4
- 2.Bb7#
- 1...Re5
- 2.Sd6#
- 2.Bb7#
- 1...f4
- 2.Sd6#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Qxc7
- 1.Qg2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::S(E)
- Q(a);N_GUARD::S(E),XQ(a)
- Q(a);N_GUARD,XP(D)::S(E)
- R(b);S_CUTQ(a)::S(E)
- P(c);S_CUTQ(a)::S(E)
- P(d);N_GUARD::S(E)
- Tries
- Try
- B(I);CHECK
- Vars
- K(e);P-FLIGHT::QAR(C)
- Refutation
- Q(a);P_SPINQ(a)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(b);OGATE,XP(H)::B(G),XR(b)
- Refutation
- Q(a);P_SPINQ(a),XB(I)
- Try
- Q(C);
- Threat
- DUALS(5)
- Vars
- Q(a);OGATE,P_SPINQ(a),XB(I)::QAR1(C),XQ(a)
- R(b);XS(E)::QAB(C)
- Refutation
- R(b);XP(H)
- Try
- Actual
- Q(C);
- Vars
- Q(a);OGATE,P_SPINQ(a),XB(I)::QAR(C)
- Q(a);N_GUARD,P_PINP(B),XQ(C)::S(E)
- R(b);XP(D)::B(G)
- R(b);XS(E)::B(G)
- R(b);OGATE,XP(H)::B(G),XR(b)
- Q(a);OGATE::QAR(C)
- Q(a);N_GUARD::S(E)
- Q(a);N_GUARD::S(E),XQ(a)
- R(b);::B(G)
- P(c);S_CUTQ(a)::S(E)
- P(d);N_GUARD::S(E)
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).