MESON Chess Problem Database
Problem Display
PID: 21006 (8/8/2p5/B1n2b2/p1QP1pB1/K2PNR2/R1P1k3/4N2r w - - 0 1)
van der Ven, AMA
Good Companions (February), 1915
#2
11 + 7
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rxe1
- 2.c3#
- 1...Bxd3
- 2.cxd3#
- 1...Sb3
- 2.cxb3#
- 1...Sxd3
- 2.cxd3#
- 1...Se4
- 2.dxe4#
- 1...fxe3
- 2.Rxf5#
- 1...Rxe1
- Tries
- 1.S1g2?
- threat
- 2.Sxf4#
- 2.c3#
- 1...fxe3
- 2.Rxf5#
- 1...Ra1
- 2.Sxf4#
- 1...Rb1
- 2.Sxf4#
- 1...Rc1
- 2.Sxf4#
- 1...Rd1
- 2.Sxf4#
- 1...Sb3
- 2.Sxf4#
- 2.cxb3#
- 1...Se4
- 2.Sxf4#
- 2.dxe4#
- 1...Se6
- 2.c3#
- 1...Bxg4!
- threat
- 1.Rf2+?
- 1...Kxe3
- 2.Re2#
- 1...Kxf2!
- 1...Kxe3
- 1.Rxf4+?
- 1...Kxe3
- 2.Sg2#
- 1...Bxg4!
- 1...Kxe3
- 1.Qb3?
- threat
- 2.c4#
- 1...Bxd3
- 2.cxd3#
- 1...Sxb3
- 2.cxb3#
- 1...Sxd3
- 2.cxd3#
- 1...axb3
- 2.cxb3#
- 1...Se4!
- threat
- 1.Qb5?
- threat
- 2.c4#
- 1...Rxe1
- 2.c3#
- 1...Bxd3
- 2.cxd3#
- 1...Sxd3
- 2.cxd3#
- 1...fxe3
- 2.Rxf5#
- 1...Sb3
- 2.cxb3#
- 1...Se4!
- threat
- 1.Qc3?
- threat
- 2.Qd2#
- 1...fxe3
- 2.Rxf5#
- 1...Sb3
- 2.cxb3#
- 1...Se4!
- threat
- 1.Qb4?
- threat
- 2.Qd2#
- 2.c4#
- 1...Rxe1
- 2.Qxe1#
- 2.Qd2#
- 1...Bxd3
- 2.Qd2#
- 2.cxd3#
- 1...Sxd3
- 2.Qd2#
- 2.cxd3#
- 1...fxe3
- 2.Rxf5#
- 1...Sb3
- 2.cxb3#
- 1...Se4!
- threat
- 1.Qxc5?
- threat
- 2.c4#
- 1...Bxd3
- 2.cxd3#
- 1...fxe3
- 2.Rxf5#
- 1...Rxe1!
- threat
- 1.S1g2?
- Keys
- 1.Qa6!
- threat
- 2.c4#
- 1...Rxe1
- 2.c3#
- 1...Bxd3
- 2.cxd3#
- 1...Sxd3
- 2.cxd3#
- 1...fxe3
- 2.Rxf5#
- 1...Sb3
- 2.cxb3#
- 1...Se4
- 2.dxe4#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);SBLOCK,XS(A)::R(B)+P(C)
- B(f);OGATE,P_SPINB(f),XP(E)::R(B)+P(C),XB(f)
- S(e);OGATE::R(B)+P(C),XS(e)
- S(e);OGATE,P_SPINS(e),XP(E)::R(B)+P(C),XS(e)
- S(e);OGATE::QAB(H)+P(E),XS(e)
- P(d);OGATE,SBLOCK,XS(F)::B(J)+R(G),XB(f)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,XS(F)::B(J)+R(G),XB(f)
- R(a);P_PINR(B)::S(A),XP(d)
- R(a);::S(A),XP(d)
- S(e);::R(B)+P(C)
- Refutation
- B(f);XB(J)
- Try
- R(G);CHECK
- Vars
- K(b);P-FLIGHT,XS(F)::R1(G)
- Refutation
- K(b);P-FLIGHT,XR(G)
- Try
- R(G);CHECK,XP(d)
- Vars
- K(b);P-FLIGHT,XS(F)::S(A)
- Refutation
- B(f);XB(J)
- Try
- Q(H);
- Threat
- R(B)+P(C)
- Vars
- B(f);OGATE,XP(E)::R(B)+P(C),XB(f)
- S(e);OGATE,XQ(H)::R(B)+P(C),XS(e)
- S(e);OGATE,XP(E)::R(B)+P(C),XS(e)
- P(c);OGATE,XQ(H)::R(B)+P(C),XP(c)
- Refutation
- S(e);
- Try
- Q(H);
- Threat
- R(B)+P(C)
- Vars
- R(a);SBLOCK,XS(A)::R(B)+P(C)
- B(f);OGATE,P_SPINB(f),XP(E)::R(B)+P(C),XB(f)
- S(e);OGATE,P_SPINS(e),XP(E)::R(B)+P(C),XS(e)
- P(d);OGATE,SBLOCK,XS(F)::B(J)+R(G),XB(f)
- S(e);OGATE::R(B)+P(C),XS(e)
- Refutation
- S(e);
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- P(d);OGATE,SBLOCK,XS(F)::B(J)+R(G),XB(f)
- S(e);OGATE::R(B)+P(C),XS(e)
- Refutation
- S(e);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,SBLOCK,XS(F)::B(J)+R(G),XB(f)
- S(e);OGATE::R(B)+P(C),XS(e)
- Refutation
- S(e);
- Try
- Q(H);XS(e)
- Threat
- R(B)+P(C)
- Vars
- B(f);OGATE,XP(E)::R(B)+P(C),XB(f)
- P(d);OGATE,SBLOCK,XS(F)::B(J)+R(G),XB(f)
- Refutation
- R(a);XS(A)
- Try
- Actual
- Q(H);
- Threat
- R(B)+P(C)
- Vars
- R(a);SBLOCK,XS(A)::R(B)+P(C)
- B(f);OGATE,P_SPINB(f),XP(E)::R(B)+P(C),XB(f)
- S(e);OGATE,P_SPINS(e),XP(E)::R(B)+P(C),XS(e)
- P(d);OGATE,SBLOCK,XS(F)::B(J)+R(G),XB(f)
- S(e);OGATE::R(B)+P(C),XS(e)
- S(e);OGATE::QAB(H)+P(E),XS(e)
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