MESON Chess Problem Database
Problem Display
PID: 21495 (8/2BB3b/2R5/3k3r/2r5/1np1R2p/Q3N3/4K3 w - - 0 1)
Beach, Lennox F
Good Companions (February), 1919
#2
7 + 7
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Sxc3#
- 1...Rh4
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Rh6
- 2.Re5#
- 1...Bf5
- 2.Re5#
- 1...Sa1
- 2.Qxc4#
- 1...Sc1
- 2.Qxc4#
- 1...Sd4
- 2.Sxc3#
- 2.Sf4#
- 2.Qxc4#
- 1...Sc5
- 2.Rd6#
- 1...Rd4
- Tries
- 1.Qxb3?
- threat
- 2.Qxc4#
- 1...Rh4
- 2.Re5#
- 1...Bd3!
- threat
- 1.Qa4?
- threat
- 2.Be6#
- 2.Qxc4#
- 1...Rxc6
- 2.Qxc6#
- 1...Bd3
- 2.Be6#
- 1...Rb4
- 2.Be6#
- 1...Rd4
- 2.Sxc3#
- 2.Be6#
- 1...Re4
- 2.Sxc3#
- 1...Rf4
- 2.Sxc3#
- 2.Sxf4#
- 2.Be6#
- 1...Rg4
- 2.Sxc3#
- 2.Be6#
- 1...Rch4
- 2.Sxc3#
- 2.Be6#
- 1...Rc5
- 2.Sf4#
- 2.Be6#
- 2.Rd6#
- 1...Rhh4
- 2.Be6#
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 2.Qxc4#
- 1...Rh6
- 2.Re5#
- 2.Qxc4#
- 1...Bf5
- 2.Re5#
- 2.Qxc4#
- 1...Bg8
- 2.Qxc4#
- 1...Sd2
- 2.Be6#
- 1...Sd4
- 2.Sf4#
- 2.Qxc4#
- 1...Sa5
- 2.Be6#
- 1...Sc5
- 2.Rd6#
- 1...Rxa4!
- threat
- 1.Qa6?
- threat
- 2.Be6#
- 2.Qxc4#
- 1...Rxc6
- 2.Qxc6#
- 1...Bd3
- 2.Be6#
- 1...Ra4
- 2.Be6#
- 1...Rb4
- 2.Be6#
- 1...Rd4
- 2.Sxc3#
- 2.Be6#
- 1...Rf4
- 2.Be6#
- 1...Rg4
- 2.Be6#
- 1...Rch4
- 2.Be6#
- 1...Rc5
- 2.Be6#
- 2.Rd6#
- 1...Rhh4
- 2.Be6#
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 2.Qxc4#
- 1...Rh6
- 2.Re5#
- 2.Qxc4#
- 1...Bf5
- 2.Re5#
- 2.Qxc4#
- 1...Bg8
- 2.Qxc4#
- 1...Sd2
- 2.Be6#
- 1...Sd4
- 2.Sf4#
- 2.Qxc4#
- 1...Sa5
- 2.Be6#
- 1...Sc5
- 2.Rd6#
- 1...Re4!
- threat
- 1.Qxb3?
- Keys
- 1.Qa8!
- threat
- 2.Be6#
- 1...Rxc6
- 2.Qxc6#
- 1...Re4
- 2.Rcxc3#
- 1...Re5
- 2.Rxe5#
- 1...Rh6
- 2.Re5#
- 1...Bf5
- 2.Re5#
- 1...Bg8
- 2.Qxg8#
- 1...Sd4
- 2.Sf4#
- 1...Sc5
- 2.Rd6#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(d);N_GUARD,P_SPINS(a),SBLOCK::S(C),XP(b)
- R(f);N_GUARD::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- B(g);S_CUTR(f)::R1(D)
- S(a);OGATE,P_SPINR(d)::QAB1(B),XR(d)
- S(a);P_SPINR(d),SBLOCK::R1(E)
- Tries
- Try
- Q(B);P_PINR(d),XS(a)
- Threat
- QAB1(B),XR(d)
- Vars
- R(f);N_GUARD::R1(D)
- Refutation
- B(g);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XR(E)::QAB1(B),XR(d)
- B(g);::B(G)
- R(d);::B(G)
- R(d);N_GUARD::S(C),XP(b)
- B(g);::QAB1(B),XR(d)
- S(a);::B(G)
- S(a);SBLOCK::R1(E)
- Refutation
- R(d);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XR(E)::QAB1(B),XR(d)
- B(g);::B(G)
- R(d);::B(G)
- B(g);::QAB1(B),XR(d)
- S(a);::B(G)
- S(a);SBLOCK::R1(E)
- Refutation
- R(d);
- Try
- Actual
- Q(B);
- Threat
- B(G)
- Vars
- R(d);OGATE,P_SPINR(d),XR(E)::QAB1(B),XR(d)
- R(d);OGATE::QAB(B)+R(E),XP(b)
- R(f);N_GUARD::R1(D),XR(f)
- R(f);N_GUARD::R1(D)
- B(g);S_CUTR(f)::R1(D)
- B(g);N_GUARD::QAB(B),XB(g)
- S(a);SBLOCK,S_CUTR(d)::S(C)
- S(a);SBLOCK::QAB(B)+R(E),DCHECK
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