MESON Chess Problem Database
Problem Display
PID: 8181 (7N/1p2b1n1/6Q1/1r1Nk3/2bR2B1/qpP3PK/7R/4nr2 w - - 0 1)
Novitski, Petr Adrinovich
4th HM., The Problemist, 1995
#2
9 + 10
| 3335 | Cyclone | 2000 |
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qd6
- 2.Qe4#
- 1...Rg1
- 2.Sf7#
- 1...Rh1
- 2.Sf7#
- 1...Rf4
- 2.gxf4#
- 1...Rf7
- 2.Sxf7#
- 1...Rxd5
- 2.Re4#
- 1...Be2
- 2.Rxe2#
- 1...Bd6
- 2.Qe4#
- 1...Bf6
- 2.Sf7#
- 1...Sd3
- 2.Re2#
- 1...Sf3
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Se8
- 2.Qe6#
- 1...Qd6
- Tries
- 1.Sf4?
- threat
- 2.Re4#
- 1...Rxf4
- 2.gxf4#
- 1...Bd3
- 2.Sf7#
- 1...Be6
- 2.Re2#
- 1...Bf6
- 2.Qe4#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Sf7#
- 2.Qf5#
- 1...Bd5!
- threat
- 1.Sb6?
- threat
- 2.Sxc4#
- 2.Sd7#
- 2.Re4#
- 1...Bd5
- 2.Sd7#
- 1...Qb4
- 2.Sd7#
- 2.Re4#
- 1...Qc5
- 2.Sd7#
- 2.Re4#
- 1...Qd6
- 2.Sxc4#
- 2.Re4#
- 1...Qa4
- 2.Sd7#
- 2.Re4#
- 1...Rf4
- 2.Sxc4#
- 2.Sd7#
- 2.gxf4#
- 1...Rf5
- 2.Sxc4#
- 2.Sd7#
- 1...Rf6
- 2.Sxc4#
- 2.Sd7#
- 2.Qe4#
- 1...Rb4
- 2.Sd7#
- 2.Re4#
- 1...Rc5
- 2.Sd7#
- 2.Re4#
- 1...Rd5
- 2.Sxc4#
- 2.Re4#
- 1...Be2
- 2.Sd7#
- 2.Rxe2#
- 2.Re4#
- 1...Bd3
- 2.Sd7#
- 1...Be6
- 2.Re2#
- 1...Bf7
- 2.Sd7#
- 2.Re2#
- 2.Re4#
- 1...Bg8
- 2.Sd7#
- 2.Re2#
- 2.Re4#
- 1...Bf6
- 2.Sxc4#
- 2.Sd7#
- 2.Qe4#
- 1...Sf5
- 2.Sxc4#
- 2.Sd7#
- 1...Se6
- 2.Sxc4#
- 2.Sd7#
- 1...Rxb6!
- threat
- 1.Qf6+?
- 1...Bxf6
- 2.Sf7#
- 1...Rxf6!
- 1...Bxf6
- 1.Qxg7+?
- 1...Rf6
- 2.Sf7#
- 1...Bf6
- 2.Sf7#
- 1...Kd6!
- 1...Rf6
- 1.Sf4?
- Keys
- 1.Sf6!
- threat
- 2.Sd7#
- 1...Rxf6
- 2.Qe4#
- 1...Bxf6
- 2.Qe4#
- 1...Rd5
- 2.Sf7#
- 1...Qd6
- 2.Re4#
- 1...Be6
- 2.Re2#
- threat
- 1.Sf6!
Anticipated by 218(1950)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(c);SBLOCK::QAR1(H)
- R(b);N_GUARD::S(I)
- R(b);N_GUARD,P_PINR(A)::S(I)
- R(b);OGATE::P(C),XR(b)
- R(b);N_GUARD::S(I),XR(b)
- R(f);SBLOCK,XS(G)::R1(E)
- B(e);N_GUARD::R(A),XB(e)
- B(i);SBLOCK::QAR1(H)
- B(i);S_CUTR(b)::S(I)
- S(a);S_CUTB(e)::R(A)
- S(a);S_CUTR(b)::S(I)
- S(j);S_CUTR(b)::S(I)
- S(j);N_GUARD::QAR1(H)
- S(j);N_GUARD::QAR1(H),XS(j)
- Tries
- Try
- S(G);
- Threat
- R1(E)
- Vars
- R(b);OGATE,XS(G)::P(C),XR(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD,P_PINB(F)::R(A)
- B(i);SBLOCK::QAR1(H)
- S(j);N_GUARD::QAR1(H),XS(j)
- Refutation
- B(e);
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- B(e);::S(G)
- B(e);N_GUARD,P_PINB(F)::R(A)
- Refutation
- R(f);XS(G)
- Try
- Q(H);CHECK
- Vars
- B(i);XQ(H)::S(I)
- Refutation
- R(b);XQ(H)
- Try
- Q(H);CHECK,XS(j)
- Vars
- R(b);P_SPINR(b)::S(I)
- B(i);P_SPINB(i)::S(I)
- Refutation
- K(g);S_FLIGHT
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- R(b);SBLOCK,XS(G)::QAR1(H)
- B(i);SBLOCK,XS(G)::QAR1(H)
- R(f);S_CUTB(e)::S(I)
- Q(c);SBLOCK::R1(E)
- B(e);N_GUARD,P_PINB(F)::R(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).