MESON Chess Problem Database
Problem Display
PID: 20926 (n1b5/K3Nr2/2R5/4kBR1/3NP1n1/p5P1/1B5p/3Q2bq w - - 0 1)
Dobbs, Gilbert S
3rd HM., Good Companions (December), 1914
#2
10 + 9
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rf8
- 2.Sg6#
- 1...Bxd4+
- 2.Bxd4#
- 2.Qxd4#
- 1...Bxf5
- 2.Re6#
- 1...Ba6
- 2.Re6#
- 1...Be6
- 2.Rxe6#
- 1...Bb7
- 2.Sg6#
- 2.Re6#
- 1...Bd7
- 2.Sg6#
- 1...Sf2
- 2.Sf3#
- 1...Se3
- 2.Sf3#
- 1...Sb6
- 2.Sf3#
- 1...Sc7
- 2.Sg6#
- 1...Rf8
- Tries
- 1.Kb8?
- threat
- 2.Sf3#
- 2.Sg6#
- 1...Qxe4
- 2.Sf3#
- 1...Rxe7
- 2.Sf3#
- 1...Bxd4
- 2.Sg6#
- 2.Bxd4#
- 2.Qxd4#
- 1...Bxf5
- 2.Re6#
- 1...axb2
- 2.Sg6#
- 1...Be6
- 2.Sf3#
- 2.Rxe6#
- 1...Qf3
- 2.Sxf3#
- 2.Sg6#
- 1...Rf6
- 2.Sf3#
- 1...Rg7
- 2.Sf3#
- 1...Rxf5!
- threat
- 1.Bg6+?
- 1...Bf5
- 2.Re6#
- 1...Rf5!
- 1...Bf5
- 1.Bd7+?
- 1...Rf5
- 2.Re6#
- 1...Kxe4!
- 1...Rf5
- 1.Bh7+?
- 1...Bf5
- 2.Re6#
- 1...Rf5!
- 1...Bf5
- 1.Bxc8+?
- 1...Rf5
- 2.Re6#
- 1...Kxe4!
- 1...Rf5
- 1.Qd3?
- threat
- 2.Qb5#
- 1...Rxe7+
- 2.Bd7#
- 1...Bxd4+
- 2.Bxd4#
- 2.Qxd4#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxf5
- 2.Sg6#
- 1...Bxf5
- 2.Re6#
- 1...Be6
- 2.Rxe6#
- 1...Ba6
- 2.Re6#
- 1...Se3
- 2.Sf3#
- 1...Sf6
- 2.Be6#
- 2.Bd7#
- 2.Bxc8#
- 1...Sb6
- 2.Sf3#
- 1...Sc7
- 2.Sg6#
- 1...axb2!
- threat
- 1.Kb8?
- Keys
- 1.Qc2!
- threat
- 2.Qc5#
- 1...Rxe7+
- 2.Bd7#
- 1...Qxe4
- 2.Qxe4#
- 1...Rxf5
- 2.Sg6#
- 1...Bxf5
- 2.Re6#
- 1...Be6
- 2.Rxe6#
- 1...Se3
- 2.Sf3#
- 1...Sf6
- 2.Be6#
- 2.Bd7#
- 2.Bxc8#
- 1...Sb6
- 2.Sf3#
- 1...Sc7
- 2.Sg6#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(g);::S(J)
- B(i);N_GUARD,P_SPINB(i),XB(F)::R1(H)
- B(i);N_GUARD::R1(H)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);::S(J)
- S(e);N_PINS(D),P_PINS(J)::B(B)+S(D),DCHECK
- S(h);N_PINS(D),P_PINS(J)::B(B)+S(D),DCHECK
- S(h);::S(J)
- Tries
- Try
- K(I);N_SPINS(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(b);XP(E)::B(B)+S(D),DCHECK
- R(g);XS(J)::B(B)+S(D),DCHECK
- B(i);N_GUARD,P_SPINB(i),XB(F)::R1(H)
- P(d);XB(B)::S(J)
- R(g);::B(B)+S(D),DCHECK
- Refutation
- R(g);P_SPINR(g),XB(F)
- Try
- B(F);CHECK
- Vars
- B(i);P_SPINB(i)::R1(H)
- Refutation
- R(g);P_SPINR(g)
- Try
- B(F);CHECK
- Vars
- R(g);P_SPINR(g)::R1(H)
- Refutation
- K(f);P-FLIGHT,XP(E)
- Try
- B(F);CHECK
- Vars
- B(i);P_SPINB(i)::R1(H)
- Refutation
- R(g);P_SPINR(g)
- Try
- B(F);CHECK,XB(i)
- Vars
- R(g);P_SPINR(g)::R1(H)
- Refutation
- K(f);P-FLIGHT,XP(E)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- R(g);CHECK,N_GUARD,XS(J)::R(G)+B(F)
- Q(b);OGATE,XP(E)::QAR1(A),XQ(b)
- R(g);P_SPINR(g),XB(F)::S(J)
- B(i);N_GUARD,P_SPINB(i),XB(F)::R1(H)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);N_GUARD::R1(H)
- S(e);N_PINS(D),P_PINS(J)::B(B)+S(D),DCHECK
- S(h);N_PINS(D),P_PINS(J)::B(B)+S(D),DCHECK
- S(h);::S(J)
- Refutation
- P(d);XB(B)
- Try
- Actual
- Q(A);
- Threat
- QAR2(A)
- Vars
- R(g);CHECK,N_GUARD,XS(J)::R(G)+B(F)
- Q(b);OGATE,XP(E)::QAR1(A),XQ(b)
- R(g);P_SPINR(g),XB(F)::S(J)
- B(i);N_GUARD,P_SPINB(i),XB(F)::R1(H)
- B(i);N_GUARD::R1(H),XB(i)
- S(e);N_PINS(D),P_PINS(J)::B(B)+S(D),DCHECK
- S(h);N_PINS(D),P_PINS(J)::B(B)+S(D),DCHECK
- S(h);::S(J)
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