MESON Chess Problem Database
Problem Display
PID: 21339 (2R5/rn1nKp2/1R1p4/2Nk4/3p4/bb2p2p/4BN1B/2r3Q1 w - - 0 1)
Ellerman, Arnoldo
1st Prize, Good Companions (January), 1918
#2
8 + 12
| 3132 | The Good Companion Two-Mover | 1922 |
| 133 | The Problemist Supplement | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Qh1#
- 1...Rc3
- 2.Qh1#
- 1...Rc4
- 2.Bf3#
- 2.Qh1#
- 1...Rxc5
- 2.Qh1#
- 1...Bd1
- 2.Qh1#
- 1...Bc4
- 2.Bf3#
- 1...Sa5
- 2.Rxd6#
- 1...Sbxc5
- 2.Rxd6#
- 1...Sd8
- 2.Rxd6#
- 1...Sf6
- 2.Qg5#
- 1...f5
- 2.Qg8#
- 1...f6
- 2.Qg8#
- 1...Rc2
- Tries
- 1.Sxd7?
- threat
- 2.Sf6#
- 2.Bf3#
- 1...Rxc8
- 2.Qh1#
- 1...Bc5
- 2.Sf6#
- 1...Rc5
- 2.Sf6#
- 2.Qh1#
- 1...Rc6
- 2.Qh1#
- 1...Rc7
- 2.Qh1#
- 1...Bd1
- 2.Sf6#
- 2.Qh1#
- 1...Bc2
- 2.Sf6#
- 2.Bc4#
- 1...Sa5
- 2.Bf3#
- 1...Sc5
- 2.Rxd6#
- 1...Sd8
- 2.Bf3#
- 1...f6
- 2.Sxf6#
- 2.Bf3#
- 2.Qg8#
- 1...d3!
- threat
- 1.Qg4?
- threat
- 2.Qf3#
- 2.Qe4#
- 1...Sbxc5
- 2.Rxd6#
- 1...Sdxc5
- 2.Qf5#
- 1...Se5
- 2.Qe4#
- 1...Sf6
- 2.Qf5#
- 2.Qg5#
- 1...d3
- 2.Bf3#
- 2.Qe4#
- 1...f5
- 2.Qf3#
- 2.Qg8#
- 1...Bc2!
- threat
- 1.Qg5+?
- 1...f5
- 2.Qg8#
- 1...Se5!
- 1...f5
- 1.Qg6?
- threat
- 2.Qe4#
- 2.Qxf7#
- 1...Sbxc5
- 2.Rxd6#
- 2.Qxd6#
- 1...Sdxc5
- 2.Qf5#
- 1...d3
- 2.Qxd3#
- 2.Qe4#
- 1...Bc2
- 2.Qxf7#
- 1...Sd8
- 2.Rxd6#
- 2.Qe4#
- 2.Qxd6#
- 1...Se5
- 2.Qe4#
- 1...Sf6
- 2.Qf5#
- 2.Qxf7#
- 2.Qg5#
- 1...Sf8
- 2.Qe4#
- 2.Qf5#
- 1...f5
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...f6
- 2.Qe4#
- 2.Qf7#
- 2.Qg8#
- 1...fxg6!
- threat
- 1.Sxd7?
- Keys
- 1.Se6!
- threat
- 2.Bf3#
- 1...Rxc8
- 2.Qh1#
- 1...Bc5
- 2.Sc7#
- 1...Rc5
- 2.Qh1#
- 1...Rc6
- 2.Qh1#
- 1...Rc7
- 2.Qh1#
- 1...Bd1
- 2.Qh1#
- 1...Bc2
- 2.Bc4#
- 1...Sbc5
- 2.Rxd6#
- 1...Sdc5
- 2.Sc7#
- 1...Se5
- 2.Sf4#
- 1...Sf6
- 2.Qg5#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD,XS(E)::QAB(A)
- B(c);S_CUTR(a)::QAB(A)
- B(c);SBLOCK::B(B)
- S(j);N_GUARD::R1(F),XP(h)
- S(j);N_GUARD,XS(E)::R1(F),XP(h)
- S(k);N_GUARD,S_CUTP(l)::QAR(A)
- P(l);OGATEB::QAB(A)
- Tries
- Try
- S(E);XS(k)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XR(H)::QAB(A)
- B(b);::S(E)
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD,P_PINS(E)::QAB(A)
- S(j);P_PINS(E)::B(B)
- S(j);N_GUARD,P_PINS(E),S_CUTB(b)::R1(F),XP(h)
- Refutation
- P(f);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(j);N_GUARD,XS(E)::R1(F),XP(h)
- S(k);N_GUARD,XS(E)::QAR2(A)
- S(k);::QAB1(A)
- Refutation
- B(c);
- Try
- Q(A);CHECK
- Vars
- P(l);OGATEB,P_SPINP(l)::QAB(A)
- Refutation
- S(k);P_SPINS(k)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(k);N_GUARD,XS(E)::QAR2(A)
- B(c);::QAB(A),XP(l)
- S(k);::QAB1(A)
- Refutation
- P(l);XQ(A)
- Try
- Actual
- S(E);
- Threat
- B(B)
- Vars
- R(a);N_GUARD,XR(H)::QAB(A)
- B(b);SBLOCK,S_CUTR(a)::S(E)
- R(a);N_GUARD::QAB(A)
- B(c);S_CUTR(a)::QAB(A)
- B(c);N_GUARD,S_CUTR(a)::B(B)
- S(j);N_GUARD,S_CUTB(b)::R1(F),XP(h)
- S(k);SBLOCK,S_CUTR(a)::S(E)
- S(k);SBLOCK::S(E)
- S(k);N_GUARD,S_CUTP(l)::QAR(A)
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).