MESON Chess Problem Database
Problem Display
PID: 19436 (2K2N2/B5Q1/2p1n2R/2Pkn3/R3bb2/7r/N1P4p/5r2 w - - 0 1)
Goldschmeding, Cornelis
2nd Place, Elk Wat Wils Wedstrijd, 1942
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sxc3#
- 1...Rh4
- 2.Sc3#
- 1...Rh5
- 2.Sc3#
- 1...Rxh6
- 2.Sc3#
- 1...Bd3
- 2.Sc3#
- 1...Bf3
- 2.Sc3#
- 1...Be3
- 2.Sc3#
- 1...Bg3
- 2.Sc3#
- 1...Sd3
- 2.Sc3#
- 2.c4#
- 1...Sf3
- 2.Sc3#
- 2.c4#
- 1...Sc4
- 2.Sb4#
- 1...Sg4
- 2.c4#
- 1...Sg6
- 2.c4#
- 1...Sd7
- 2.c4#
- 1...Sf7
- 2.c4#
- 1...Sd4
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sxg7
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sxf8
- 2.Rd6#
- 1...Rc3
- Tries
- 1.Sxe6?
- threat
- 2.Sc7#
- 2.Rd4#
- 1...Rxh6
- 2.Sc7#
- 1...Bxh6
- 2.Sc7#
- 1...Bg6
- 2.Sc7#
- 1...Rd1
- 2.Sxf4#
- 2.Sc7#
- 1...Rd3
- 2.Sc7#
- 1...Bf5
- 2.Rd4#
- 1...Be3
- 2.Sc3#
- 2.Sc7#
- 1...Sd3
- 2.Sc3#
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sf3
- 2.Sc3#
- 2.Sxf4#
- 2.c4#
- 1...Sc4
- 2.Sb4#
- 2.Qd4#
- 1...Sg4
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sd7
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sf7
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sg6!
- threat
- 1.Sg6?
- threat
- 2.Se7#
- 1...Sxg6
- 2.c4#
- 1...Bg5
- 2.Qxe5#
- 1...Bxg6!
- threat
- 1.Rxe6?
- threat
- 2.Rd6#
- 1...Rh6
- 2.Sc3#
- 1...Sd3
- 2.Sc3#
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sf3
- 2.Sc3#
- 2.c4#
- 1...Sc4
- 2.Sb4#
- 1...Sg4
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sg6
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sd7
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Sf7
- 2.Rd4#
- 2.Qd4#
- 2.c4#
- 1...Bf5!
- threat
- 1.Qf6?
- threat
- 2.Qxe6#
- 1...Rxh6
- 2.Sc3#
- 1...Sxc5
- 2.Qd6#
- 1...Sxf8
- 2.Qd6#
- 1...Sc4
- 2.Sb4#
- 1...Sd4
- 2.Qd6#
- 1...Sg5
- 2.Qd6#
- 1...Sc7
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Bf5!
- threat
- 1.Qe7?
- threat
- 2.Qd6#
- 2.Qxe6#
- 1...Rxh6
- 2.Sc3#
- 2.Qd6#
- 1...Sxc5
- 2.Rd6#
- 2.Qxc5#
- 2.Qd6#
- 1...Sxf8
- 2.Rd6#
- 2.Qd6#
- 1...Sd3
- 2.Qxe6#
- 1...Sf3
- 2.Qxe6#
- 1...Sg4
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...Sf7
- 2.Qxe6#
- 1...Bf5
- 2.Qd6#
- 1...Sd4
- 2.Rd6#
- 2.Qd6#
- 1...Sg5
- 2.Rd6#
- 2.Qd6#
- 1...Sc7
- 2.Rd6#
- 2.Qd6#
- 1...Sg7
- 2.Rd6#
- 2.Qd6#
- 1...Sd8
- 2.Rd6#
- 2.Qd6#
- 1...Sc4!
- threat
- 1.c4+?
- 1...Sxc4
- 2.Sb4#
- 1...Kd4!
- 1...Sxc4
- 1.Sxe6?
- Keys
- 1.Sd7!
- threat
- 2.Sf6#
- 1...Rxh6
- 2.Sc3#
- 1...Bxh6
- 2.Qxe5#
- 1...Sxd7
- 2.c4#
- 1...Sxc5
- 2.Sb6#
- 1...Sxg7
- 2.Rd6#
- 1...Bc1
- 2.Qxe5#
- 1...Bd2
- 2.Qxe5#
- 1...Be3
- 2.Sc3#
- 2.Qxe5#
- 1...Bg3
- 2.Sc3#
- 1...Bg5
- 2.Qxe5#
- 1...Sd3
- 2.Sc3#
- 2.c4#
- 1...Sf3
- 2.Sc3#
- 2.c4#
- 1...Sc4
- 2.Sb4#
- 1...Sg4
- 2.c4#
- 1...Sg6
- 2.c4#
- 1...Sf7
- 2.c4#
- 1...Sd4
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sf8
- 2.Rd6#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- R(c);N_GUARD::S(A),XR(c)
- R(c);N_GUARD::S(A)
- R(c);N_GUARD,XR(E)::S(A)
- B(d);S_CUTR(c)::S(A)
- B(e);S_CUTR(c)::S(A)
- S(g);SBLOCK::S(A)
- S(g);N_GUARD::P(B)
- S(i);OGATE::R1(E)
- S(i);OGATE,XQ(G)::R1(E)
- S(i);OGATE,XS(I)::R1(E)
- Tries
- Try
- S(I);XS(i)
- Threat
- DUALS(2)
- Vars
- R(c);XR(E)::S(I)
- B(e);XR(E)::S(I)
- B(d);::S(I)
- R(c);::S(I)
- B(d);P_PINS(I)::R1(C)
- Refutation
- S(g);
- Try
- S(I);
- Threat
- S(I)
- Vars
- S(g);N_GUARD,XS(I)::P(B)
- B(e);N_GUARD::QAR1(G),XS(g)
- Refutation
- B(d);XS(I)
- Try
- R(E);XS(i)
- Threat
- R1(E)
- Vars
- R(c);N_GUARD::S(A)
- S(g);SBLOCK::S(A)
- Refutation
- B(d);P_PINR(E)
- Try
- Q(G);
- Threat
- QAB1(G),XS(i)
- Vars
- R(c);N_GUARD,XR(E)::S(A)
- S(i);OGATE,XP(D)::QAR1(G)
- S(i);OGATE,XS(I)::QAR1(G)
- S(g);SBLOCK::S(A)
- S(i);OGATE::QAR1(G)
- Refutation
- B(d);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(g);::QAB1(G),XS(i)
- B(d);::QAR1(G)
- Refutation
- S(g);
- Try
- P(B);CHECK
- Vars
- S(g);SBLOCK,XP(B)::S(A)
- Refutation
- K(f);P-FLIGHT,P_SPINS(g)
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- R(c);N_GUARD,XR(E)::S(A)
- B(e);N_GUARD,XR(E)::QAR1(G),XS(g)
- S(g);N_GUARD,XS(I)::P(B)
- S(i);SBLOCK,XP(D)::S(I)
- S(i);OGATE,XQ(G)::R1(E)
- B(e);N_GUARD::QAR1(G),XS(g)
- B(e);S_CUTR(c)::S(A)
- S(g);SBLOCK::S(A)
- S(g);N_GUARD::P(B)
- S(i);OGATE::R1(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).