MESON Chess Problem Database
Problem Display
PID: 74393 (8/K3B3/4p3/3pk3/Q3P2R/3bN3/3P4/8 w - - 0 1)
van der Stok, WHJ
Tijdschrift vd KNSB, 1938
#2
7 + 4
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.d4#
- 1...Bf1
- 2.d4#
- 1...Bc2
- 2.d4#
- 1...Be2
- 2.d4#
- 1...Bxe4
- 2.d4#
- 1...Bb5
- 2.d4#
- 1...Ba6
- 2.d4#
- 1...dxe4
- 2.Qa1#
- 1...Bb1
- Tries
- 1.Sxd5?
- threat
- 2.Rh5#
- 2.Qa1#
- 1...Bxe4
- 2.Qxe4#
- 1...Bc4
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 2.d4#
- 1...exd5!
- threat
- 1.Qb4?
- 1...Bxe4
- 2.d4#
- 1...dxe4
- 2.Qc3#
- 2.Qc5#
- 2.Qd6#
- 2.Qb2#
- 1...d4
- 2.Qc5#
- 2.Qd6#
- 2.Qb8#
- 1...Bb1
- 2.d4#
- 1...Bf1
- 2.d4#
- 1...Bc2
- 2.d4#
- 1...Be2
- 2.d4#
- 1...Bb5
- 2.d4#
- 1...Ba6
- 2.d4#
- 1...Bc4!
- 1...Bxe4
- 1.exd5?
- threat
- 2.Qa1#
- 2.Qd4#
- 2.Qf4#
- 1...Bc4
- 2.Qa1#
- 2.d4#
- 1...Be4
- 2.Rxe4#
- 2.Qa1#
- 2.Qxe4#
- 2.d4#
- 1...exd5!
- threat
- 1.Sxd5?
- Keys
- 1.Qd1!
- 1...Kd4
- 2.Qa1#
- 1...Bxe4
- 2.d4#
- 1...dxe4
- 2.Qa1#
- 1...d4
- 2.Qh5#
- 1...Bb1
- 2.d4#
- 1...Bf1
- 2.d4#
- 1...Bc2
- 2.d4#
- 1...Be2
- 2.d4#
- 1...Bc4
- 2.d4#
- 1...Bb5
- 2.d4#
- 1...Ba6
- 2.d4#
- 1...Kd4
- 1.Qd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(a);OGATE::P(A)
- B(a);OGATE,XP(D)::P(A)
- P(b);N_GUARD,XP(D)::QAB(C)
- Tries
- Try
- S(B);XP(b)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,XP(D)::QAR1(C),XB(a)
- B(a);::QAB(C)
- Refutation
- P(d);XS(B)
- Try
- Q(C);
- Vars
- B(a);OGATE,XP(D)::P(A)
- B(a);OGATE::P(A)
- Refutation
- B(a);
- Try
- P(D);XP(b)
- Threat
- DUALS(3)
- Refutation
- P(d);XP(D)
- Try
- Actual
- Q(C);
- Vars
- K(c);S_FLIGHT::QAB(C)
- B(a);OGATE,XP(D)::P(A)
- P(b);N_GUARD,XP(D)::QAB(C)
- P(b);SBLOCK::QAR(C)
- B(a);OGATE::P(A)
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).