MESON Chess Problem Database
Problem Display
PID: 21510 (5b2/1qp4b/Nrr4p/1p1n4/8/3k1NpQ/pPR1RP2/K4B2 w - - 0 1)
Guidelli, Giorgio
4th HM., Good Companions (January), 1919
#2
9 + 12
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Re3#
- 1...Rc4
- 2.Rcd2#
- 1...Rd6
- 2.Sc5#
- 1...Rg6
- 2.Qf5#
- 1...Be4
- 2.Red2#
- 1...Bf5
- 2.Qxf5#
- 1...Bg8
- 2.Qf5#
- 1...Se7
- 2.Sb4#
- 1...Rxc2
- Tries
- 1.Rc1?
- threat
- 2.Ree1#
- 2.Re3#
- 2.Re5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...gxf2
- 2.Ree1#
- 2.Re5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Rc2
- 2.Re3#
- 1...Sc3
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 1...Re6
- 2.Re3#
- 2.Re5#
- 2.Rxe6#
- 1...Be4
- 2.Ree1#
- 2.Rec2#
- 2.Rd2#
- 2.Re3#
- 1...Be7
- 2.Ree1#
- 2.Re3#
- 2.Re5#
- 2.Re6#
- 2.Rxe7#
- 1...Sf4
- 2.Re3#
- 1...Se7
- 2.Sb4#
- 2.Ree1#
- 2.Re3#
- 2.Re5#
- 2.Re6#
- 2.Rxe7#
- 1...g2
- 2.Re3#
- 1...Rxc1+!
- threat
- 1.Qg4?
- threat
- 2.Se1#
- 2.Se5#
- 2.Rcd2#
- 2.Red2#
- 2.Qd4#
- 1...Rxc2
- 2.Se1#
- 2.Se5#
- 2.Rd2#
- 2.Re3#
- 2.Qd4#
- 1...gxf2
- 2.Se5#
- 2.Rcd2#
- 2.Qd4#
- 1...Rc4
- 2.Se1#
- 2.Se5#
- 2.Rcd2#
- 2.Red2#
- 1...Re6
- 2.Se1#
- 2.Rcd2#
- 2.Red2#
- 2.Qd4#
- 1...Be4
- 2.Red2#
- 2.Qxe4#
- 1...Bb4
- 2.Se5#
- 2.Red2#
- 2.Qd4#
- 1...Bc5
- 2.Se1#
- 2.Se5#
- 2.Rcd2#
- 2.Red2#
- 1...Bd6
- 2.Se1#
- 2.Rcd2#
- 2.Red2#
- 2.Qd4#
- 1...Bg7
- 2.Se1#
- 2.Rcd2#
- 2.Red2#
- 1...Sf4!
- threat
- 1.Qe6?
- threat
- 2.Red2#
- 2.Qxd5#
- 1...Rxc2
- 2.Rd2#
- 2.Re3#
- 1...Rc3
- 2.Red2#
- 1...Rc4
- 2.Rcd2#
- 2.Red2#
- 1...Rc5
- 2.Red2#
- 1...Rd6
- 2.Sc5#
- 2.Red2#
- 1...Be4
- 2.Red2#
- 2.Qxe4#
- 1...Bg8
- 2.Red2#
- 2.Qf5#
- 2.Qe4#
- 1...Bc5
- 2.Red2#
- 1...Bg7
- 2.Red2#
- 1...Sc3
- 2.Rcd2#
- 2.Red2#
- 1...Se3
- 2.Rcd2#
- 2.Red2#
- 2.Qxe3#
- 1...Sb4
- 2.Rcd2#
- 2.Red2#
- 2.Qe3#
- 1...Sf4
- 2.Rcd2#
- 2.Red2#
- 2.Qe3#
- 1...Sf6
- 2.Rcd2#
- 2.Red2#
- 2.Qe3#
- 1...Se7
- 2.Sb4#
- 2.Rcd2#
- 2.Red2#
- 2.Qe3#
- 1...Rxe6!
- threat
- 1.Qh4?
- threat
- 2.Se1#
- 2.Se5#
- 2.Rcd2#
- 2.Red2#
- 2.Qd4#
- 1...Rxc2
- 2.Se1#
- 2.Se5#
- 2.Rd2#
- 2.Re3#
- 2.Qd4#
- 1...gxf2
- 2.Se5#
- 2.Rcd2#
- 2.Qd4#
- 1...Rc4
- 2.Se1#
- 2.Se5#
- 2.Rcd2#
- 2.Red2#
- 1...Re6
- 2.Se1#
- 2.Rcd2#
- 2.Red2#
- 2.Qd4#
- 1...Be4
- 2.Red2#
- 2.Qxe4#
- 1...Bb4
- 2.Se5#
- 2.Red2#
- 2.Qd4#
- 1...Bc5
- 2.Se1#
- 2.Se5#
- 2.Rcd2#
- 2.Red2#
- 1...Bd6
- 2.Se1#
- 2.Rcd2#
- 2.Red2#
- 2.Qd4#
- 1...Bg7
- 2.Se1#
- 2.Rcd2#
- 2.Red2#
- 1...Sf4!
- threat
- 1.Rc1?
- Keys
- 1.Qd7!
- threat
- 2.Qxd5#
- 1...Rxc2
- 2.Re3#
- 1...Rc3
- 2.Rxc3#
- 1...Rc4
- 2.Rcd2#
- 1...Rc5
- 2.Sb4#
- 1...Rd6
- 2.Sc5#
- 1...Re6
- 2.Rc3#
- 1...Rf6
- 2.Rc3#
- 1...Rg6
- 2.Rc3#
- 2.Qf5#
- 1...Be4
- 2.Red2#
- 1...Bg8
- 2.Qf5#
- 1...Bc5
- 2.Rc3#
- 1...Bd6
- 2.Qxh7#
- 1...Bg7
- 2.Sb4#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 3
- Sets
- R(g);SBLOCK,XR(D)::B(B)+R(E),DCHECK
- R(g);SBLOCK::R1(D)
- R(g);N_GUARD,S_CUTB(l)::S(I)
- R(g);S_CUTB(k)::QAB(H)
- B(k);SBLOCK::B(B)+R(E),DCHECK
- B(k);N_GUARD::QAB(H),XB(k)
- B(k);N_GUARD::QAB(H)
- S(e);N_GUARD,S_CUTB(l)::S(I)
- Tries
- Try
- R(D);
- Threat
- DUALS(6)
- Vars
- R(g);::B(B)+R(E),DCHECK
- S(e);::B(B)+R(E),DCHECK
- S(e);::B(B)+R(E),DCHECK,XS(e)
- P(c);::B(B)+R(E),DCHECK
- Refutation
- R(g);CHECK,XR(D)
- Try
- Q(H);
- Threat
- DUALS(5)
- Refutation
- S(e);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(g);::B(B)+R(E),DCHECK
- B(l);::B(B)+R(E),DCHECK
- B(l);P_PINP(C)::B(B)+R(E),DCHECK
- Refutation
- R(g);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(5)
- Refutation
- S(e);
- Try
- Actual
- Q(H);P_PINS(e)
- Threat
- QAR2(H),XS(e)
- Vars
- R(g);SBLOCK,XR(D)::B(B)+R(E),DCHECK
- R(g);N_GUARD::R1(D),XR(g)
- R(g);SBLOCK::R1(D)
- R(g);S_CUTB(l)::S(I)
- R(g);N_GUARD,N_SPINS(e),S_CUTB(l)::S(I)
- R(g);N_GUARD::R1(D)
- B(k);SBLOCK::B(B)+R(E),DCHECK
- B(k);N_GUARD::QAB(H)
- B(l);S_CUTR(g)::R1(D)
- B(l);N_SPINS(e),S_CUTR(g)::QAB(H),XB(k)
- B(l);N_GUARD,P_PINP(C)::S(I)
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