MESON Chess Problem Database
Problem Display
PID: 259049 (2qR4/4P3/2n1N3/1Q2NP1R/1n2kp2/2b5/3rp1P1/6BK w - - 0 1)
Termaat, Nicolaas Ljsbrand Johanne
Probleemblad, 1949
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qxe2#
- 1...Rd4
- 2.Qxe2#
- 1...Rd5
- 2.Qxe2#
- 1...Bxe5
- 2.Sc5#
- 1...Sd3
- 2.Qd5#
- 1...f3
- 2.gxf3#
- 1...Rd1
- Tries
- 1.Sf3?
- threat
- 2.Sfg5#
- 2.Sc5#
- 2.Seg5#
- 1...Qxe6
- 2.Sg5#
- 1...Qxd8
- 2.Sfg5#
- 2.Seg5#
- 1...Rxd8
- 2.Sfg5#
- 2.Seg5#
- 1...Sxe7
- 2.Sfg5#
- 2.Seg5#
- 1...Sxd8
- 2.Sfg5#
- 2.Seg5#
- 1...Qd7
- 2.Sfg5#
- 2.Seg5#
- 1...Rd5
- 2.Qxe2#
- 1...Rd6
- 2.Sfg5#
- 2.Seg5#
- 1...Rd7
- 2.Sfg5#
- 2.Seg5#
- 1...Bd4
- 2.Sxd2#
- 2.Sfg5#
- 2.Seg5#
- 1...Be5
- 2.Sxd2#
- 2.Sc5#
- 1...Bf6
- 2.Sxd2#
- 2.Sc5#
- 1...Sd3
- 2.Sfg5#
- 2.Seg5#
- 2.Qd5#
- 1...Sd5
- 2.Sc5#
- 1...Sa6
- 2.Sfg5#
- 2.Seg5#
- 1...Sd4
- 2.Sfg5#
- 2.Seg5#
- 1...Sa5
- 2.Sfg5#
- 2.Seg5#
- 1...Sa7
- 2.Sfg5#
- 2.Seg5#
- 1...Sb8
- 2.Sfg5#
- 2.Seg5#
- 1...Se5!
- threat
- 1.Sxc6?
- threat
- 2.Sc5#
- 2.Sg5#
- 1...Qxc6
- 2.Sg5#
- 1...Qxd8
- 2.Sg5#
- 1...Rxd8
- 2.Sg5#
- 1...Sxc6
- 2.Sg5#
- 1...Qd7
- 2.Sg5#
- 1...Rd5
- 2.Qxe2#
- 1...Rd6
- 2.Sg5#
- 1...Rd7
- 2.Sg5#
- 1...Bd4
- 2.Sg5#
- 1...Be5
- 2.Sc5#
- 2.Qxe5#
- 1...Bf6
- 2.Sc5#
- 1...Sd3
- 2.Sg5#
- 2.Qd5#
- 1...Sd5
- 2.Sc5#
- 1...Sa6
- 2.Sg5#
- 1...f3
- 2.Rh4#
- 1...Qxe6!
- threat
- 1.Sf7?
- threat
- 2.Sc5#
- 2.Seg5#
- 2.Sfg5#
- 1...Qxe6
- 2.Sg5#
- 1...Qxd8
- 2.Seg5#
- 2.Sfg5#
- 1...Rxd8
- 2.Seg5#
- 2.Sfg5#
- 1...Sxe7
- 2.Seg5#
- 2.Sfg5#
- 1...Sxd8
- 2.Seg5#
- 2.Sfg5#
- 1...Qd7
- 2.Seg5#
- 2.Sfg5#
- 1...Rd5
- 2.Qxe2#
- 1...Rd6
- 2.Seg5#
- 2.Sfg5#
- 2.Sxd6#
- 1...Rd7
- 2.Seg5#
- 2.Sfg5#
- 1...Bd4
- 2.Seg5#
- 2.Sfg5#
- 2.Sd6#
- 1...Be5
- 2.Sc5#
- 1...Bf6
- 2.Sc5#
- 1...Sd3
- 2.Seg5#
- 2.Sfg5#
- 2.Sd6#
- 2.Qd5#
- 1...Sd5
- 2.Sc5#
- 1...Sa6
- 2.Seg5#
- 2.Sfg5#
- 1...Sd4
- 2.Seg5#
- 2.Sfg5#
- 2.Sd6#
- 1...Sa5
- 2.Seg5#
- 2.Sfg5#
- 1...Sa7
- 2.Seg5#
- 2.Sfg5#
- 1...Sb8
- 2.Seg5#
- 2.Sfg5#
- 1...f3
- 2.Sfg5#
- 2.Rh4#
- 1...Se5!
- threat
- 1.Sf3?
- Keys
- 1.Sd7!
- threat
- 2.Sg5#
- 1...Se5
- 2.Sf6#
- 1...Rd5
- 2.Qxe2#
- 1...Be5
- 2.Sdc5#
- 1...Bf6
- 2.Sxf6#
- 1...Sd5
- 2.Sec5#
- 1...f3
- 2.Rh4#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(a);N_GUARD,P_PINB(A)::QAR2(D),XP(b)
- R(a);N_GUARD::QAR2(D),XP(b)
- B(c);SBLOCK,XS(E)::S(H)
- S(d);N_GUARD,S_CUTR(a)::QAB1(D)
- P(f);OGATE::P(C),XP(f)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(h);XS(H)::S(E)
- R(a);N_GUARD::QAR2(D),XP(b)
- S(d);::S(H)
- Refutation
- S(g);
- Try
- S(E);XS(g)
- Threat
- DUALS(2)
- Vars
- Q(h);XS(E)::S(H)
- Q(h);XR(J)::S(H)
- R(a);XR(J)::S(H)
- S(d);XS(E)::S(H)
- Q(h);::S(H)
- R(a);N_GUARD::QAR2(D),XP(b)
- R(a);::S(H)
- B(c);::S(H)
- S(d);::S(H)
- P(f);OGATEB::R(G)
- Refutation
- Q(h);XS(H)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(h);XS(H)::S(E)
- R(a);N_GUARD::QAR2(D),XP(b)
- B(c);::S(H)
- S(d);::S(H)
- Refutation
- S(g);
- Try
- Actual
- S(E);
- Threat
- S(H)
- Vars
- S(g);S_CUTB(c)::S(E)
- R(a);N_GUARD,SBLOCK::QAR2(D),XP(b)
- B(c);SBLOCK::S(E)
- B(c);N_GUARD::S(E),XB(c)
- S(d);SBLOCK::S(H)
- P(f);OGATEB::R(G)
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).