MESON Chess Problem Database
Problem Display
PID: 64890 (8/b7/2p2Nr1/n1p2p1b/K4Qqp/3k3N/2R2B2/3B4 w - - 0 1)
Ellerman, Arnoldo
2nd HM., Good Companions (October), 1921
#2
7 + 10
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Qxd1
- 2.Qxf5#
- 1...Qe2
- 2.Qd6#
- 1...Qf3
- 2.Qd2#
- 1...Qxh3
- 2.Qd2#
- 2.Qd6#
- 1...Qg1
- 2.Qd2#
- 2.Qe3#
- 2.Qd6#
- 2.Qxf5#
- 1...Qg2
- 2.Qd2#
- 2.Qe3#
- 1...Qg3
- 2.Qd2#
- 2.Qxf5#
- 1...Qxf4+
- 2.Sxf4#
- 1...Qg5
- 2.Qd6#
- 1...c4
- 2.Qd2#
- 1...Qxd1
- Tries
- 1.Ka3?
- threat
- 2.Qd2#
- 2.Qe3#
- 1...Qxd1
- 2.Qxf5#
- 1...Qxh3
- 2.Qd2#
- 2.Qd6#
- 1...Qxf4
- 2.Sxf4#
- 1...Rxf6
- 2.Qe3#
- 1...Qe2
- 2.Qd6#
- 1...Qf3
- 2.Qd2#
- 1...Qg3
- 2.Qd2#
- 2.Qxf5#
- 1...Qg5
- 2.Qd6#
- 1...Sb3
- 2.Qe3#
- 1...c4
- 2.Qd2#
- 1...Sc4+!
- threat
- 1.Kxa5?
- threat
- 2.Qd2#
- 2.Qe3#
- 1...Qxd1
- 2.Qc4#
- 2.Qxf5#
- 1...Qxh3
- 2.Qd2#
- 2.Qd6#
- 2.Qc4#
- 1...Qxf4
- 2.Sxf4#
- 1...Rxf6
- 2.Qe3#
- 1...Qe2
- 2.Qd6#
- 2.Qc4#
- 1...Qf3
- 2.Qd2#
- 2.Qc4#
- 1...Qg3
- 2.Qd2#
- 2.Qc4#
- 2.Qxf5#
- 1...Qg5
- 2.Qd6#
- 2.Qc4#
- 1...c4
- 2.Qd2#
- 1...Bb6+!
- threat
- 1.Bxc5?
- threat
- 2.Sf2#
- 1...Qxf4+
- 2.Sxf4#
- 1...Qxd1
- 2.Qxf5#
- 1...Qxh3
- 2.Qd2#
- 2.Qd6#
- 2.Qd4#
- 1...Qe2
- 2.Qd6#
- 2.Qd4#
- 1...Qf3
- 2.Qd2#
- 2.Qd4#
- 1...Qg1
- 2.Qd2#
- 2.Qxf5#
- 1...Qg2
- 2.Qe3#
- 2.Qd4#
- 1...Qg3
- 2.Qd2#
- 2.Qd4#
- 2.Qxf5#
- 1...Bxc5!
- threat
- 1.Ka3?
- Keys
- 1.Bg1!
- threat
- 2.Sf2#
- 1...Qxf4+
- 2.Sxf4#
- 1...Qxd1
- 2.Qxf5#
- 1...Qxh3
- 2.Qd2#
- 2.Qd6#
- 1...Qxg1
- 2.Qd2#
- 1...Qe2
- 2.Qd6#
- 1...Qf3
- 2.Qd2#
- 1...Qg2
- 2.Qe3#
- 1...Qg3
- 2.Qd2#
- 2.Qxf5#
- 1...c4
- 2.Qd2#
- threat
- 1.Bg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(b);N_PINQ(F),P_PINR(B),XB(A)::QAB(F),XP(f)
- Q(b);N_PINQ(F)::QAR(F)
- Q(b);N_PINQ(F)::QAR1(F)
- Q(b);CHECK,XQ(F)::S(D),XQ(b)
- P(e);N_PINQ(F)::QAR1(F)
- Tries
- Try
- K(E);N_SPINQ(F),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XB(A)::QAB(F),XP(f)
- Q(b);XQ(F)::S(D),XQ(b)
- R(i);XS(G)::QAR1(F)
- Q(b);N_GUARD::QAR(F)
- Q(b);::QAR1(F)
- S(d);::QAR1(F)
- P(e);::QAR1(F)
- Refutation
- S(d);CHECK
- Try
- K(E);N_SPINQ(F),P-FLIGHT,XS(d)
- Threat
- DUALS(2)
- Vars
- Q(b);XQ(F)::S(D),XQ(b)
- R(i);XS(G)::QAR1(F)
- P(e);::QAR1(F)
- Refutation
- B(j);CHECK
- Try
- B(C);XP(e)
- Threat
- S(D)
- Vars
- Q(b);CHECK,XQ(F)::S(D),XQ(b)
- Q(b);N_PINQ(F),P_PINR(B),XB(A)::QAB(F),XP(f)
- Refutation
- B(j);XB(C)
- Try
- Actual
- B(C);
- Threat
- S(D)
- Vars
- Q(b);CHECK,XQ(F)::S(D),XQ(b)
- Q(b);N_PINQ(F),P_PINR(B),XB(A)::QAB(F),XP(f)
- Q(b);N_PINQ(F),XB(C)::QAR1(F)
- Q(b);N_PINQ(F)::QAR(F)
- Q(b);N_PINQ(F)::QAR1(F)
- P(e);N_PINQ(F)::QAR1(F)
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