MESON Chess Problem Database
Problem Display
PID: 233880 (2r5/4pN2/N4B2/3bQ3/P1kr1p2/Kpp1b3/2Ppn3/8 w - - 0 1)
Ellerman, Arnoldo
Skakbladet, 1950
#2
7 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.cxb3#
- 1...Bh1
- 2.Qb5#
- 1...Bg2
- 2.Qb5#
- 1...Bf3
- 2.Qb5#
- 1...Be4
- 2.Qb5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qb5#
- 1...Bb7
- 2.Qb5#
- 1...Bxf7
- 2.Qb5#
- 1...Ba8
- 2.Qb5#
- 1...exf6
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...Rd3
- Tries
- 1.Qxd4+?
- 1...Sxd4
- 2.Se5#
- 1...Bxd4!
- 1...Sxd4
- 1.Qd6?
- threat
- 2.Se5#
- 2.Qb4#
- 1...bxc2
- 2.Se5#
- 1...exd6
- 2.Sxd6#
- 1...exf6
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 2.cxb3#
- 1...Re4
- 2.Qb4#
- 1...Rc5
- 2.Se5#
- 2.Qxc5#
- 1...Rb8
- 2.Se5#
- 2.Qc5#
- 1...Bh1
- 2.Se5#
- 1...Bg2
- 2.Se5#
- 1...Bf3
- 2.Se5#
- 1...Be4
- 2.Se5#
- 1...Bc6
- 2.Se5#
- 2.Qc5#
- 1...Be6
- 2.Se5#
- 1...Bb7
- 2.Se5#
- 1...Ba8
- 2.Se5#
- 1...e5
- 2.Sxe5#
- 2.Qb4#
- 1...Bxf7!
- threat
- 1.Qc7+?
- 1...Rxc7
- 2.Se5#
- 1...Bc6!
- 1...Rxc7
- 1.Qb8?
- threat
- 2.Se5#
- 2.Qxb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rxb8
- 2.Se5#
- 1...Bxf7
- 2.Qxb3#
- 2.Qb5#
- 1...bxc2
- 2.Se5#
- 2.Qb5#
- 1...exf6
- 2.Sd6#
- 2.Qxb3#
- 2.Qb4#
- 2.Qb5#
- 1...Bh1
- 2.Qxb3#
- 2.Qb5#
- 1...Bg2
- 2.Qxb3#
- 2.Qb5#
- 1...Bf3
- 2.Qxb3#
- 2.Qb5#
- 1...Be4
- 2.Qxb3#
- 2.Qb5#
- 1...Bc6
- 2.Qxb3#
- 1...Be6
- 2.Qxb3#
- 2.Qb5#
- 1...Ba8
- 2.Qxb3#
- 2.Qb5#
- 1...Rd3
- 2.Qxb3#
- 2.Qb4#
- 2.Qb5#
- 2.cxb3#
- 1...Re4
- 2.Qxb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rc5
- 2.Se5#
- 2.Qxb3#
- 2.Qb4#
- 1...Sc1
- 2.Se5#
- 2.Qb4#
- 2.Qb5#
- 1...b2
- 2.Se5#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...e5
- 2.Sxe5#
- 2.Sd6#
- 2.Qxb3#
- 2.Qb4#
- 2.Qb5#
- 1...Bb7!
- threat
- 1.Qf5?
- threat
- 2.Se5#
- 2.cxb3#
- 1...Bxf7
- 2.Qb5#
- 2.cxb3#
- 1...bxc2
- 2.Se5#
- 1...exf6
- 2.Sd6#
- 2.cxb3#
- 1...d1Q
- 2.Se5#
- 1...d1B
- 2.Se5#
- 1...Rd3
- 2.Qxd3#
- 2.cxb3#
- 2.cxd3#
- 1...Rb8
- 2.Se5#
- 1...Bh1
- 2.Qb5#
- 2.cxb3#
- 1...Bg2
- 2.Qb5#
- 2.cxb3#
- 1...Bf3
- 2.Qb5#
- 2.cxb3#
- 1...Be4
- 2.Qb5#
- 1...Bc6
- 2.Qc5#
- 2.cxb3#
- 1...Be6
- 2.Qb5#
- 2.cxb3#
- 1...Bb7
- 2.Qb5#
- 2.cxb3#
- 1...Ba8
- 2.Qb5#
- 2.cxb3#
- 1...Sc1
- 2.Se5#
- 1...b2
- 2.Se5#
- 1...e5
- 2.Sxe5#
- 2.Sd6#
- 2.cxb3#
- 1...Re4!
- threat
- 1.Qg5?
- threat
- 2.Se5#
- 1...Bxf7
- 2.Qb5#
- 1...exf6
- 2.Sd6#
- 1...Rd3
- 2.cxb3#
- 1...Bh1
- 2.Qb5#
- 1...Bg2
- 2.Qb5#
- 1...Bf3
- 2.Qb5#
- 1...Be4
- 2.Qb5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qb5#
- 1...Bb7
- 2.Qb5#
- 1...Ba8
- 2.Qb5#
- 1...e5
- 2.Sxe5#
- 2.Sd6#
- 1...Re4!
- threat
- 1.Qxd4+?
- Keys
- 1.Qh5!
- threat
- 2.Se5#
- 1...Bxf7
- 2.Qb5#
- 1...exf6
- 2.Sd6#
- 1...Rd3
- 2.cxb3#
- 1...Re4
- 2.Qxe2#
- 1...Bh1
- 2.Qb5#
- 1...Bg2
- 2.Qb5#
- 1...Bf3
- 2.Qb5#
- 1...Be4
- 2.Qb5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Qb5#
- 1...Bb7
- 2.Qb5#
- 1...Ba8
- 2.Qb5#
- 1...e5
- 2.Sxe5#
- 2.Sd6#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(g);SBLOCK::P(A),XP(c)
- B(i);OGATE::QAB1(D)
- B(i);OGATE::QAR1(D)
- B(i);OGATE,XS(G)::QAB1(D)
- P(j);N_GUARD,XB(F)::S(G)
- P(j);N_GUARD::S(G)
- Tries
- Try
- Q(D);CHECK,XR(g)
- Vars
- S(b);SBLOCK,XQ(D)::S(G)
- Refutation
- B(e);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(c);XP(A)::S(G)
- P(j);XQ(D)::S(G),XP(j)
- P(j);XB(F)::QAR1(D)
- R(g);::QAR1(D)
- B(i);::S(G)
- Refutation
- B(i);XS(G)
- Try
- Q(D);CHECK
- Vars
- R(k);XQ(D)::S(G)
- Refutation
- B(i);P_SPINB(i)
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- R(k);XQ(D)::S(G)
- B(i);::QAB1(D),XP(c)
- Refutation
- B(i);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(c);XP(A)::S(G)
- P(a);::S(G)
- R(k);::S(G)
- B(i);OGATE::QAB1(D)
- S(b);::S(G)
- P(c);::S(G)
- Refutation
- R(g);
- Try
- Q(D);
- Threat
- S(G)
- Vars
- B(i);OGATE,XS(G)::QAB1(D)
- P(j);N_GUARD,XB(F)::S(G)
- R(g);SBLOCK::P(A),XP(c)
- B(i);OGATE::QAB1(D)
- B(i);OGATE::QAR1(D)
- Refutation
- R(g);
- Try
- Actual
- Q(D);
- Threat
- S(G)
- Vars
- B(i);OGATE,XS(G)::QAB1(D)
- P(j);N_GUARD,XB(F)::S(G)
- R(g);SBLOCK::P(A),XP(c)
- R(g);N_GUARD::QAB(D),XS(b)
- B(i);OGATE::QAB1(D)
- B(i);OGATE::QAR1(D)
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).