MESON Chess Problem Database
Problem Display
PID: 21366 (8/1Q6/p5r1/8/5p2/8/2NR1B1n/K4kn1 w - - 0 1)
White, Alain Campbell
Good Companions (November), 1918
#2
5 + 6
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Qb1#
- 1...f3
- 2.Se3#
- 1...Rg2
- Tries
- 1.Be3?
- threat
- 2.Rf2#
- 2.Qb1#
- 1...fxe3
- 2.Qb1#
- 1...Rg2
- 2.Qxg2#
- 2.Qb1#
- 1...Rb6
- 2.Rf2#
- 2.Qg2#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qb1#
- 1...Shf3
- 2.Rf2#
- 1...Sg4
- 2.Qg2#
- 2.Qb1#
- 1...Sgf3!
- threat
- 1.Bg3?
- threat
- 2.Rf2#
- 2.Qg2#
- 2.Qb1#
- 1...Rxg3
- 2.Qb1#
- 1...fxg3
- 2.Qg2#
- 2.Qb1#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qg2#
- 2.Qb1#
- 1...Rb6
- 2.Rf2#
- 2.Qg2#
- 1...Rc6
- 2.Rf2#
- 2.Qb1#
- 1...Re6
- 2.Rf2#
- 2.Qg2#
- 1...Shf3
- 2.Rf2#
- 1...Sg4
- 2.Qg2#
- 2.Qb1#
- 1...f3
- 2.Se3#
- 2.Rf2#
- 2.Qb1#
- 1...Sgf3!
- threat
- 1.Bd4?
- threat
- 2.Rf2#
- 2.Qb1#
- 1...Rg2
- 2.Qxg2#
- 2.Qb1#
- 1...Rb6
- 2.Rf2#
- 2.Qg2#
- 1...Re6
- 2.Rf2#
- 2.Qg2#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qb1#
- 1...Shf3
- 2.Rf2#
- 1...Sg4
- 2.Qg2#
- 2.Qb1#
- 1...Sgf3!
- threat
- 1.Bh4?
- threat
- 2.Rf2#
- 2.Qb1#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qb1#
- 1...Rg2
- 2.Qxg2#
- 2.Qb1#
- 1...Rg3
- 2.Qb1#
- 1...Rb6
- 2.Rf2#
- 2.Qg2#
- 1...Re6
- 2.Rf2#
- 2.Qg2#
- 1...Shf3
- 2.Rf2#
- 1...Sg4
- 2.Qg2#
- 2.Qb1#
- 1...Sgf3!
- threat
- 1.Bc5?
- threat
- 2.Rf2#
- 2.Qb1#
- 1...Rg2
- 2.Qxg2#
- 2.Qb1#
- 1...Rb6
- 2.Rf2#
- 2.Qg2#
- 1...Re6
- 2.Rf2#
- 2.Qg2#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qb1#
- 1...Shf3
- 2.Rf2#
- 1...Sg4
- 2.Qg2#
- 2.Qb1#
- 1...Sgf3!
- threat
- 1.Ba7?
- threat
- 2.Rf2#
- 2.Qb1#
- 1...Rg2
- 2.Qxg2#
- 2.Qb1#
- 1...Rb6
- 2.Qg2#
- 1...Re6
- 2.Rf2#
- 2.Qg2#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qb1#
- 1...Shf3
- 2.Rf2#
- 1...Sg4
- 2.Qg2#
- 2.Qb1#
- 1...Sgf3!
- threat
- 1.Be3?
- Keys
- 1.Bb6!
- threat
- 2.Rf2#
- 1...Rxb6
- 2.Qg2#
- 1...Sgf3
- 2.Qxa6#
- 1...Rg2
- 2.Qxg2#
- 1...Se2
- 2.Rd1#
- 1...Sh3
- 2.Qxa6#
- 1...Sg4
- 2.Qg2#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- R(f);SBLOCK::QAR(E)
- P(d);N_GUARD::S(B)
- Tries
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- P(d);XB(D)::QAR(E)
- S(b);SBLOCK::R(C)
- S(b);::QAR(E)
- S(c);::R1(C)
- Refutation
- S(b);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- R(f);XB(D)::QAR(E)
- S(b);SBLOCK::R(C)
- S(c);::R1(C)
- Refutation
- S(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- S(b);SBLOCK::R(C)
- S(b);::QAR(E)
- S(c);::R1(C)
- Refutation
- S(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- S(b);SBLOCK::R(C)
- S(b);::QAR(E)
- R(f);::QAR(E)
- S(c);::R1(C)
- Refutation
- S(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- S(b);SBLOCK::R(C)
- S(b);::QAR(E)
- S(c);::R1(C)
- Refutation
- S(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD::QAB1(E)
- S(b);SBLOCK::R(C)
- S(b);::QAR(E)
- S(c);::R1(C)
- Refutation
- S(b);
- Try
- Actual
- B(D);
- Threat
- R1(C)
- Vars
- R(f);N_GUARD,XB(D)::QAB1(E)
- S(b);N_GUARD::QAB(E),XP(e)
- R(f);N_GUARD::QAB1(E),XR(f)
- S(b);SBLOCK::R(C)
- S(c);S_CUTR(f)::QAB1(E)
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