MESON Chess Problem Database
Problem Display
PID: 203407 (8/6B1/Kp1p4/1Q1Pn3/N3B3/pN3p2/k3bR2/8 w - - 0 1)
Oosterholt, Cornelis Johannes
Algemeen Handelsblad, 1924
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sc4
- Tries
- 1.Kb7?
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sd3!
- 1...Sc4
- 1.Sa1?
- 1...Sd3
- 2.Qb3#
- 1...Sc4
- 2.Bb1#
- 2.Qxc4#
- 2.Qb1#
- 2.Qb3#
- 1...Sg4
- 2.Bb1#
- 2.Qc4#
- 1...Sc6
- 2.Bb1#
- 2.Qc4#
- 1...Sg6
- 2.Bb1#
- 2.Qc4#
- 1...Sd7
- 2.Bb1#
- 2.Qc4#
- 1...Sf7
- 2.Bb1#
- 2.Qc4#
- 1...Kxa1!
- 1...Sd3
- 1.Bd3?
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sxd3!
- 1...Sc4
- 1.Bf5?
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sd3!
- 1...Sc4
- 1.Bg6?
- 1...Sxg6
- 2.Sc1#
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sd3!
- 1...Sxg6
- 1.Bh7?
- 1...Sg6
- 2.Sc1#
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sd3!
- 1...Sg6
- 1.Bf6?
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sd3!
- 1...Sc4
- 1.Bh8?
- 1...Sc4
- 2.Sc1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...Sd3!
- 1...Sc4
- 1.Qxe2+?
- 1...Kxb3
- 2.Qb5#
- 1...fxe2!
- 1...Kxb3
- 1.Qd3?
- 1...Sc4
- 2.Sc1#
- 2.Qb1#
- 1...Sg4
- 2.Sc1#
- 1...Sc6
- 2.Sc1#
- 1...Sg6
- 2.Sc1#
- 1...Sd7
- 2.Sc1#
- 1...Sf7
- 2.Sc1#
- 1...b5
- 2.Qb1#
- 2.Qc2#
- 1...Sxd3!
- 1...Sc4
- 1.Kb7?
- Keys
- 1.Qc4!
- 1...Sxc4
- 2.Sc1#
- 1...Sd3
- 2.Sd2#
- 1...Sg4
- 2.Sa1#
- 2.Sc1#
- 2.Sa5#
- 2.Sbc5#
- 1...Sc6
- 2.Sa1#
- 2.Sc1#
- 2.Sa5#
- 2.Sbc5#
- 1...Sg6
- 2.Sa1#
- 2.Sc1#
- 2.Sa5#
- 2.Sbc5#
- 1...Sd7
- 2.Sa1#
- 2.Sc1#
- 2.Sa5#
- 2.Sbc5#
- 1...Sf7
- 2.Sa1#
- 2.Sc1#
- 2.Sa5#
- 2.Sbc5#
- 1...b5
- 2.Qc2#
- 1...Sxc4
- 1.Qc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(e);N_PINQ(E)::S(B)
- S(e);::S(B)
- Tries
- Try
- K(G);N_SPINQ(E),S_FLIGHT
- Vars
- S(e);::S(B)
- Refutation
- S(e);
- Try
- S(B);
- Vars
- S(e);N_PINQ(E)::QAB1(E)
- Refutation
- K(a);N_SPINB(b),P-FLIGHT,P_SPINS(e),XS(B)
- Try
- B(D);N_SPINQ(E)
- Vars
- S(e);::S(B)
- Refutation
- S(e);XB(D)
- Try
- B(D);
- Vars
- S(e);N_PINQ(E)::S(B)
- S(e);::S(B)
- Refutation
- S(e);N_PINQ(E)
- Try
- B(D);
- Vars
- S(e);XB(D)::S(B)
- S(e);N_PINQ(E)::S(B)
- S(e);::S(B)
- Refutation
- S(e);N_PINQ(E)
- Try
- B(D);
- Vars
- S(e);::S(B)
- S(e);N_PINQ(E)::S(B)
- Refutation
- S(e);N_PINQ(E)
- Try
- B(H);
- Vars
- S(e);N_PINQ(E)::S(B)
- S(e);::S(B)
- Refutation
- S(e);N_PINQ(E)
- Try
- B(H);
- Vars
- S(e);N_PINQ(E)::S(B)
- S(e);::S(B)
- Refutation
- S(e);N_PINQ(E)
- Try
- Q(E);CHECK,N_SPINQ(E),XB(b)
- Vars
- K(a);S_FLIGHT,XS(B)::QAR2(E)
- Refutation
- P(d);P_SPINP(d),XQ(E)
- Try
- Q(E);
- Vars
- S(e);::S(B)
- Refutation
- S(e);XQ(E)
- Try
- Actual
- Q(E);
- Vars
- S(e);XQ(E)::S(B)
- S(e);N_GUARD,N_PINQ(E)::QAB(E)+S(B)
- P(f);N_PINQ(E)::QAR2(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).