MESON Chess Problem Database
Problem Display
PID: 240246 (K6Q/B7/R1n1p3/2nkP2N/2p4R/8/1N2P3/2r5 w - - 0 1)
Ellerman, Arnoldo
Tijdschrift vd KNSB, 1934
#2
9 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.e4#
- 1...Sd3
- 2.e4#
- 1...Sa4
- 2.e4#
- 1...Se4
- 2.Sf4#
- 1...Sxa6
- 2.e4#
- 1...Sb7
- 2.e4#
- 1...Sd7
- 2.e4#
- 1...Sb4
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sa5
- 2.Rd6#
- 1...Sxe5
- 2.Sf6#
- 1...Sxa7
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sb8
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sb3
- Tries
- 1.Sd1?
- threat
- 2.Se3#
- 1...Rc3
- 2.Sxc3#
- 1...Rxd1!
- threat
- 1.Sxc4?
- threat
- 2.Se3#
- 2.Sb6#
- 2.Sf6#
- 1...Sxa6
- 2.Se3#
- 2.Sf6#
- 1...Sxe5
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 2.Qxe5#
- 1...Sxa7
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 1...Se4
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...Rb1
- 2.Se3#
- 2.Sf6#
- 1...Rf1
- 2.Se3#
- 2.Sb6#
- 1...Rc3
- 2.Sb6#
- 2.Sf6#
- 1...Sb3
- 2.Se3#
- 2.Sf6#
- 1...Sd3
- 2.Se3#
- 2.Sf6#
- 1...Sa4
- 2.Se3#
- 2.Sf6#
- 1...Sb7
- 2.Se3#
- 2.Sf6#
- 1...Sd7
- 2.Se3#
- 1...Sb4
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 1...Sa5
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 1...Se7
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 1...Sb8
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 1...Sd8
- 2.Se3#
- 2.Sf6#
- 2.Rd6#
- 1...Rxc4!
- threat
- 1.Qb8?
- threat
- 2.Sf6#
- 2.Qd6#
- 1...Rf1
- 2.Qd6#
- 1...Se4
- 2.Sf4#
- 1...Sb7
- 2.Sf6#
- 2.e4#
- 1...Sd7
- 2.Qd6#
- 2.e4#
- 1...Sxb8!
- threat
- 1.e4+?
- 1...Sxe4
- 2.Sf4#
- 1...Kd4!
- 1...Sxe4
- 1.Sd1?
- Keys
- 1.Sa4!
- threat
- 2.Sb6#
- 1...Sxa4
- 2.e4#
- 1...Sxa6
- 2.e4#
- 1...Sxe5
- 2.Sf6#
- 1...Sxa7
- 2.Rd6#
- 1...Rb1
- 2.Sc3#
- 1...Sb3
- 2.e4#
- 1...Sd3
- 2.e4#
- 1...Se4
- 2.Sf4#
- 1...Sb7
- 2.e4#
- 1...Sd7
- 2.e4#
- 1...Sb4
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sa5
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sb8
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::P(B)
- S(c);SBLOCK::S(E)
- S(c);N_GUARD,XR(F)::P(B)
- S(e);OGATE::R1(F)
- S(e);SBLOCK,XP(D)::S(E)
- S(e);OGATE,XB(G)::R1(F)
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- R(a);N_GUARD::S(A),XR(a)
- Refutation
- R(a);XS(A)
- Try
- S(A);XP(b)
- Threat
- DUALS(3)
- Vars
- S(c);::S(A)
- S(e);::S(A)
- Refutation
- R(a);XS(A)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(I)
- S(c);SBLOCK::S(E)
- Refutation
- S(e);XQ(I)
- Try
- P(B);CHECK
- Vars
- S(c);SBLOCK,XP(B)::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINS(c)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- S(c);N_GUARD,XS(A)::P(B)
- S(c);N_GUARD,XR(F)::P(B)
- S(e);SBLOCK,XP(D)::S(E)
- S(e);OGATE,XB(G)::R1(F)
- R(a);N_GUARD::S(A)
- S(c);N_GUARD::P(B)
- S(c);SBLOCK::S(E)
- S(e);OGATE::R1(F)
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).