MESON Chess Problem Database
Problem Display
PID: 21814 (3R4/r1p2R1n/3N4/r1ppk3/q5P1/p7/2PQp3/4K3 w - - 0 1)
Ellerman, Arnoldo
2nd Place, Good Companions (January), 1921
#2
7 + 10
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Qe3#
- 1...Qc6
- 2.Qe3#
- 1...Qe8
- 2.Qe3#
- 1...Sf6
- 2.Re7#
- 1...c4
- 2.Qe3#
- 1...Qb5
- Tries
- 1.Sc4+?
- 1...Ke4
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qd3#
- 2.Qxd5#
- 1...Ke6
- 2.Qxd5#
- 1...dxc4
- 2.Qe3#
- 2.Qxe2#
- 2.Qd5#
- 1...Qxc4!
- 1...Ke4
- 1.Sb5?
- threat
- 2.Re8#
- 2.Qxd5#
- 1...Ke4
- 2.Re8#
- 2.Qf4#
- 2.Qxe2#
- 1...Ke6
- 2.Qxd5#
- 1...Qxb5
- 2.Qe3#
- 2.Qxd5#
- 1...Qxg4
- 2.Qxd5#
- 1...Rxb5
- 2.Qxd5#
- 1...Qb3
- 2.Re8#
- 1...Qb4
- 2.Re8#
- 1...Qc4
- 2.Re8#
- 1...Qd4
- 2.Re8#
- 1...Qe4
- 2.Re8#
- 1...R5a6
- 2.Qxd5#
- 1...R7a6
- 2.Qxd5#
- 1...Ra8
- 2.Qxd5#
- 1...Sg5
- 2.Qxd5#
- 1...Sf6
- 2.Re7#
- 1...Sf8
- 2.Qxd5#
- 1...d4
- 2.Qxe2#
- 1...c6!
- threat
- 1.Sc8?
- threat
- 2.Qxd5#
- 1...Ke4
- 2.Qf4#
- 1...Ke6
- 2.Qxd5#
- 1...Qb3
- 2.Re8#
- 1...Qc6
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qb4
- 2.Re8#
- 1...Qc4
- 2.Re8#
- 1...Qd4
- 2.Re8#
- 1...Qe4
- 2.Re8#
- 1...Sf6
- 2.Re7#
- 1...c4
- 2.Qe3#
- 1...d4
- 2.Qxe2#
- 1...c6!
- threat
- 1.Se8?
- threat
- 2.Re7#
- 2.Qxd5#
- 1...Ke4
- 2.Qf4#
- 1...Ke6
- 2.Qxd5#
- 1...Qxe8
- 2.Qe3#
- 2.Qxd5#
- 1...Qxg4
- 2.Qxd5#
- 1...Qb3
- 2.Re7#
- 1...Qc6
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qb4
- 2.Re7#
- 1...Qc4
- 2.Re7#
- 1...Qd4
- 2.Re7#
- 1...Qe4
- 2.Re7#
- 1...R5a6
- 2.Qxd5#
- 1...R7a6
- 2.Qxd5#
- 1...Sg5
- 2.Qxd5#
- 1...Sf6
- 2.Re7#
- 1...Sf8
- 2.Qxd5#
- 1...c4
- 2.Re7#
- 2.Qe3#
- 1...d4
- 2.Re7#
- 2.Qxe2#
- 1...c6!
- threat
- 1.Qf4+?
- 1...Ke6
- 2.Qf5#
- 1...Qxf4!
- 1...Ke6
- 1.Sc4+?
- Keys
- 1.Sb7!
- threat
- 2.Qxd5#
- 1...Ke4
- 2.Qf4#
- 1...Ke6
- 2.Qxd5#
- 1...Qb3
- 2.Re8#
- 1...Qc6
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qb4
- 2.Re8#
- 1...Qc4
- 2.Re8#
- 1...Qd4
- 2.Re8#
- 1...Qe4
- 2.Re8#
- 1...Sf6
- 2.Re7#
- 1...c4
- 2.Qe3#
- 1...d4
- 2.Qxe2#
- 1...c6
- 2.Re8#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- Q(c);N_GUARD::QAR2(C)
- S(j);SBLOCK::R(F)
- P(e);S_CUTQ(c)::QAR2(C)
- Tries
- Try
- S(E);CHECK
- Vars
- K(g);P-FLIGHT::QAB1(C),XP(f)
- Refutation
- Q(c);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(g);P-FLIGHT::QAB1(C),XP(f)
- Q(c);XP(D)::QAR1(C),XP(f)
- R(d);XS(E)::QAR1(C),XP(f)
- Q(c);::R(G)
- Q(c);P_PINQ(C)::R(G)
- Q(c);SBLOCK::R(G)
- R(d);::QAR1(C),XP(f)
- R(h);::QAR1(C),XP(f)
- S(j);::QAR1(C),XP(f)
- S(j);SBLOCK::R(F)
- P(f);S_CUTQ(c)::QAR(C),XP(a)
- Refutation
- P(i);
- Try
- S(E);
- Threat
- QAR1(C),XP(f)
- Vars
- K(g);P-FLIGHT::QAR1(C)
- K(g);P-FLIGHT::QAB1(C),XP(f)
- Q(c);N_GUARD::R(G)
- Q(c);N_GUARD::QAR2(C)
- Q(c);N_GUARD,P_PINQ(C)::R(G)
- Q(c);N_GUARD,SBLOCK::R(G)
- S(j);SBLOCK::R(F)
- P(e);S_CUTQ(c)::QAR2(C)
- P(f);S_CUTQ(c)::QAR(C),XP(a)
- Refutation
- P(i);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- K(g);P-FLIGHT::QAR1(C)
- K(g);P-FLIGHT::QAB1(C),XP(f)
- Q(c);XP(D)::QAR1(C),XP(f)
- Q(c);::R(F)
- Q(c);N_GUARD::QAR2(C)
- Q(c);P_PINQ(C)::R(F)
- Q(c);SBLOCK::R(F)
- R(d);::QAR1(C),XP(f)
- R(h);::QAR1(C),XP(f)
- S(j);::QAR1(C),XP(f)
- S(j);::R(F)
- Refutation
- P(i);
- Try
- Q(C);CHECK
- Vars
- K(g);P-FLIGHT::QAB1(C)
- Refutation
- Q(c);XQ(C)
- Try
- Actual
- S(E);
- Threat
- QAR1(C),XP(f)
- Vars
- K(g);P-FLIGHT::QAR1(C)
- K(g);P-FLIGHT::QAB1(C),XP(f)
- Q(c);N_GUARD::R(G)
- Q(c);N_GUARD::QAR2(C)
- Q(c);N_GUARD,P_PINQ(C)::R(G)
- Q(c);N_GUARD,SBLOCK::R(G)
- S(j);SBLOCK::R(F)
- P(e);S_CUTQ(c)::QAR2(C)
- P(f);S_CUTQ(c)::QAR(C),XP(a)
- P(i);S_CUTQ(c)::R(G)
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