MESON Chess Problem Database
Problem Display
PID: 166408 (4rb2/1p6/1Kp5/R1pkpQ2/p1N5/P1P5/BP6/8 w - - 0 1)
Ellerman, Arnoldo
Tidskrift for Schack, 1918
#2
8 + 8
| 15148 | Sadier Collection | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Qd3#
- 1...Re7
- 2.Rxc5#
- 1...Ra8
- 2.Qxe5#
- 1...Rb8
- 2.Qxe5#
- 1...Rc8
- 2.Qxe5#
- 1...Rd8
- 2.Qxe5#
- 1...Bd6
- 2.Sd2#
- 2.Se3#
- 2.Sxe5#
- 1...Bh6
- 2.Rxc5#
- 1...Be7
- 2.Qxe5#
- 1...Bg7
- 2.Rxc5#
- 1...Re6
- Tries
- 1.Bb3?
- 1...Re6
- 2.Qd3#
- 1...Re7
- 2.Rxc5#
- 1...Ra8
- 2.Qxe5#
- 1...Rb8
- 2.Qxe5#
- 1...Rc8
- 2.Qxe5#
- 1...Rd8
- 2.Qxe5#
- 1...Bd6
- 2.Se3#
- 1...Bh6
- 2.Rxc5#
- 1...Be7
- 2.Qxe5#
- 1...Bg7
- 2.Rxc5#
- 1...axb3!
- 1...Re6
- 1.Rb5?
- 1...Re7
- 2.Rxc5#
- 1...Re6
- 2.Qd3#
- 1...Ra8
- 2.Qxe5#
- 1...Rb8
- 2.Qxe5#
- 1...Rc8
- 2.Qxe5#
- 1...Rd8
- 2.Qxe5#
- 1...Bd6
- 2.Sd2#
- 2.Se3#
- 2.Sa5#
- 2.Sxe5#
- 1...Bh6
- 2.Rxc5#
- 1...Be7
- 2.Qxe5#
- 1...Bg7
- 2.Rxc5#
- 1...cxb5!
- 1...Re7
- 1.Qg6?
- threat
- 2.Sd2#
- 2.Se3#
- 2.Sd6#
- 1...Re6
- 2.Qd3#
- 1...Bd6
- 2.Sd2#
- 2.Se3#
- 2.Sxd6#
- 1...e4!
- threat
- 1.Qd7+?
- 1...Bd6
- 2.Sd2#
- 2.Sxd6#
- 1...Ke4!
- 1...Bd6
- 1.Qf7+?
- 1...Ke4
- 2.Bb1#
- 1...Re6!
- 1...Ke4
- 1.b3?
- 1...Re7
- 2.Rxc5#
- 1...Re6
- 2.Qd3#
- 1...Ra8
- 2.Qxe5#
- 1...Rb8
- 2.Qxe5#
- 1...Rc8
- 2.Qxe5#
- 1...Rd8
- 2.Qxe5#
- 1...Bd6
- 2.Se3#
- 1...Bh6
- 2.Rxc5#
- 1...Be7
- 2.Qxe5#
- 1...Bg7
- 2.Rxc5#
- 1...axb3!
- 1...Re7
- 1.b4?
- 1...Re7
- 2.Rxc5#
- 1...Re6
- 2.Qd3#
- 1...Ra8
- 2.Qxe5#
- 1...Rb8
- 2.Qxe5#
- 1...Rc8
- 2.Qxe5#
- 1...Rd8
- 2.Qxe5#
- 1...Bd6
- 2.Sb2#
- 2.Sd2#
- 2.Se3#
- 2.Sxe5#
- 1...Bh6
- 2.Rxc5#
- 1...Be7
- 2.Qxe5#
- 1...Bg7
- 2.Rxc5#
- 1...axb4 ep!
- 1...Re7
- 1.Bb3?
- Keys
- 1.Bb1!
- 1...Kxc4
- 2.Ba2#
- 1...Re6
- 2.Qd3#
- 2.Qe4#
- 1...Re7
- 2.Rxc5#
- 1...Ra8
- 2.Qf7#
- 1...Rb8
- 2.Qf7#
- 1...Rc8
- 2.Qf7#
- 1...Rd8
- 2.Qf7#
- 1...Bd6
- 2.Se3#
- 1...Bh6
- 2.Rxc5#
- 1...Be7
- 2.Qf7#
- 1...Bg7
- 2.Rxc5#
- 1...Kxc4
- 1.Bb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(g);SBLOCK::QAR2(G)
- R(g);S_CUTB(h)::R1(F),XP(b)
- R(g);N_GUARD::QAR1(G),XP(d)
- B(h);N_GUARD::R1(F),XP(b)
- B(h);S_CUTR(g)::QAR1(G),XP(d)
- Tries
- Try
- B(A);
- Vars
- R(g);SBLOCK::QAR2(G)
- R(g);S_CUTB(h)::R1(F),XP(b)
- R(g);N_GUARD::QAR1(G),XP(d)
- B(h);SBLOCK::B(A)+S(E),DCHECK
- B(h);N_GUARD::R1(F),XP(b)
- B(h);S_CUTR(g)::QAR1(G),XP(d)
- Refutation
- P(a);XB(A)
- Try
- R(F);
- Vars
- R(g);S_CUTB(h)::R1(F),XP(b)
- R(g);SBLOCK::QAR2(G)
- R(g);N_GUARD::QAR1(G),XP(d)
- B(h);N_GUARD::R1(F),XP(b)
- B(h);S_CUTR(g)::QAR1(G),XP(d)
- Refutation
- P(e);N_SPINP(b),P_SPINP(d),XR(F)
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- R(g);SBLOCK::QAR2(G)
- Refutation
- P(d);
- Try
- Q(G);CHECK
- Refutation
- K(c);N_SPINP(b),S_FLIGHT
- Try
- Q(G);CHECK
- Vars
- K(c);N_SPINP(b),S_FLIGHT::B(A)
- Refutation
- R(g);P_SPINR(g)
- Try
- P(B);
- Vars
- R(g);S_CUTB(h)::R1(F),XP(b)
- R(g);SBLOCK::QAR2(G)
- R(g);N_GUARD::QAR1(G),XP(d)
- B(h);SBLOCK::S(E)
- B(h);N_GUARD::R1(F),XP(b)
- B(h);S_CUTR(g)::QAR1(G),XP(d)
- Refutation
- P(a);XP(B)
- Try
- P(B);
- Vars
- R(g);S_CUTB(h)::R1(F),XP(b)
- R(g);SBLOCK::QAR2(G)
- R(g);N_GUARD::QAR1(G),XP(d)
- B(h);N_GUARD::R1(F),XP(b)
- B(h);S_CUTR(g)::QAR1(G),XP(d)
- Refutation
- P(a);EP,XP(B)
- Try
- Actual
- B(A);
- Vars
- K(c);N_SPINP(b),OGATEB,S_FLIGHT,XS(E)::B(A)
- R(g);S_CUTB(h)::R1(F),XP(b)
- R(g);N_GUARD::QAB(G)
- B(h);SBLOCK::S(E)
- B(h);N_GUARD::R1(F),XP(b)
- B(h);S_CUTR(g)::QAB(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).