MESON Chess Problem Database
Problem Display
PID: 261192 (5n2/1N6/K6P/1Qpk1pNR/3PR3/pP3P2/2q4B/8 w - - 0 1)
Haring, Jacobus
Neue Zurcher Zeitung, 1977
#2
11 + 6
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qxc5#
- 1...Qd1
- 2.Qxc5#
- 1...Qxb3
- 2.Qxc5#
- 1...Qxe4
- 2.Qxc5#
- 1...Qa2
- 2.Qxc5#
- 1...Qb2
- 2.Qxc5#
- 1...Qd2
- 2.Qxc5#
- 1...Qf2
- 2.Qxc5#
- 1...Qg2
- 2.Qxc5#
- 1...Qxh2
- 2.Qxc5#
- 1...Qc4
- 2.bxc4#
- 1...Se6
- 2.Qd7#
- 1...Sg6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Sh7
- 2.Qd7#
- 1...f4
- 2.Sh3#
- 2.Se6#
- 2.Sf7#
- 2.Sh7#
- 1...Qb1
- Tries
- 1.Sh3?
- threat
- 2.Sf4#
- 2.Rxf5#
- 1...Qxh2
- 2.Qxc5#
- 1...Qc1
- 2.Rxf5#
- 1...Qd2
- 2.Rxf5#
- 2.Qxc5#
- 1...Se6
- 2.Rxf5#
- 2.Qd7#
- 1...Sg6
- 2.Qd7#
- 1...Sd7
- 2.Sf4#
- 2.Qxd7#
- 1...Qxe4!
- threat
- 1.Se6?
- threat
- 2.Sf4#
- 2.Sc7#
- 2.Re5#
- 2.Rxf5#
- 1...Qxh2
- 2.Qxc5#
- 1...Sxe6
- 2.Rxf5#
- 2.Qd7#
- 1...Qc1
- 2.Sc7#
- 2.Re5#
- 2.Rxf5#
- 1...Qd2
- 2.Sc7#
- 2.Re5#
- 2.Rxf5#
- 2.Qxc5#
- 1...Qe2
- 2.Sf4#
- 2.Sc7#
- 2.Rxf5#
- 1...Sg6
- 2.Sc7#
- 2.Qd7#
- 1...Sd7
- 2.Sf4#
- 2.Sc7#
- 2.Qxd7#
- 1...Qxe4!
- threat
- 1.Sf7?
- threat
- 2.Rxf5#
- 1...Qxh2
- 2.Qxc5#
- 1...Sg6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Qxe4!
- threat
- 1.Sh7?
- threat
- 2.Sf6#
- 2.Rxf5#
- 1...Qxh2
- 2.Sf6#
- 2.Qxc5#
- 1...Sxh7
- 2.Rxf5#
- 2.Qd7#
- 1...Sg6
- 2.Sf6#
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Qxe4!
- threat
- 1.Re6?
- threat
- 2.Rd6#
- 1...Qxh2
- 2.Qc4#
- 2.Qxc5#
- 1...Sxe6
- 2.Qd7#
- 1...Kxd4!
- threat
- 1.Sh3?
- Keys
- 1.Sxc5!
- threat
- 2.Qb7#
- 1...Qxb3
- 2.Sxb3#
- 1...Qxe4
- 2.Sce6#
- 1...Qxh2
- 2.Sb7#
- 1...Qxc5
- 2.Qxc5#
- 1...fxe4
- 2.Sge6#
- 1...f4
- 2.Sf7#
- 1...Qd3
- 2.Sxd3#
- 1...Qe2
- 2.Sd3#
- 1...Qc4
- 2.bxc4#
- threat
- 1.Sxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::QAR1(F),XP(c)
- Q(a);N_GUARD,XP(B)::QAR1(F),XP(c)
- Q(a);N_GUARD,XR(E)::QAR1(F),XP(c)
- Q(a);N_GUARD,XB(A)::QAR1(F),XP(c)
- Q(a);OGATE,P_PINQ(F)::P(B),XQ(a)
- S(f);N_GUARD::QAR2(F)
- S(f);N_GUARD::QAR2(F),XS(f)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XB(A)::QAR1(F),XP(c)
- Q(a);::R(H),XP(e)
- S(f);N_GUARD::QAR2(F)
- Refutation
- Q(a);XR(E)
- Try
- S(G);
- Threat
- DUALS(4)
- Vars
- Q(a);N_GUARD,XB(A)::QAR1(F),XP(c)
- Refutation
- Q(a);XR(E)
- Try
- S(G);
- Threat
- R(H),XP(e)
- Vars
- Q(a);N_GUARD,XB(A)::QAR1(F),XP(c)
- S(f);N_GUARD::QAR2(F)
- S(f);N_GUARD::QAR2(F),XS(f)
- Refutation
- Q(a);XR(E)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD::QAR2(F),XS(f)
- Refutation
- Q(a);XR(E)
- Try
- R(E);
- Threat
- R1(E)
- Vars
- S(f);N_GUARD,XR(E)::QAR2(F)
- Refutation
- K(d);N_SPINP(c),P-FLIGHT,XP(D)
- Try
- Actual
- S(K);XP(c)
- Threat
- QAB(F)
- Vars
- Q(a);XP(B)::QAR(F)+S(K),XQ(a)
- Q(a);N_GUARD,XR(E)::QAR(F)+S(K)
- Q(a);N_GUARD,XB(A)::QAR(F)+S(K)
- Q(a);OGATE,P_SPINQ(a),XS(K)::QAR1(F),XQ(a)
- P(e);XR(E)::R(H)+S(G)
- P(e);::R(H)+S(G)
- Q(a);N_GUARD,P_PINQ(F)::QAR(F)+S(K),XQ(a)
- Q(a);N_GUARD,P_PINQ(F)::QAR(F)+S(K)
- Q(a);OGATE,P_PINQ(F)::P(B),XQ(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).