MESON Chess Problem Database
Problem Display
PID: 65315 (3n1B2/8/5p2/N6p/1NBk2nQ/4R3/pr1p1P1p/b2R3K w - - 0 1)
Heydon, Joseph Kentigern
Good Companions (February), 1922
#2
9 + 10
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rb3
- 2.Sc2#
- 1...Rxb4
- 2.Rxd2#
- 1...Sc6
- 2.Sbxc6#
- 1...Se6
- 2.Sbc6#
- 1...Sb7
- 2.Sbc6#
- 1...Sf7
- 2.Sbc6#
- 1...f5
- 2.Qxd8#
- 1...Rb1
- Tries
- 1.Be2?
- 1...Rxb4
- 2.Rxd2#
- 1...Rc2
- 2.Sb3#
- 1...Rb3
- 2.Sxb3#
- 1...Sc6
- 2.Saxc6#
- 1...Se6
- 2.Sac6#
- 1...Sb7
- 2.Sac6#
- 1...Sf7
- 2.Sac6#
- 1...f5
- 2.Qxd8#
- 1...Rb1!
- 1...Rxb4
- 1.Bb3?
- 1...Rb1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Sc6
- 2.Sbxc6#
- 2.Saxc6#
- 1...Se6
- 2.Sbc6#
- 2.Sac6#
- 1...Sb7
- 2.Sbc6#
- 2.Sac6#
- 1...Sf7
- 2.Sbc6#
- 2.Sac6#
- 1...f5
- 2.Qxd8#
- 1...Rxb3!
- 1...Rb1
- 1.Bb5?
- 1...Rxb4
- 2.Rxd2#
- 1...Rc2
- 2.Sb3#
- 1...Rb3
- 2.Sxb3#
- 1...Sc6
- 2.Saxc6#
- 1...Se6
- 2.Sac6#
- 1...Sb7
- 2.Sac6#
- 1...Sf7
- 2.Sac6#
- 1...f5
- 2.Qxd8#
- 1...Rb1!
- 1...Rxb4
- 1.Ba6?
- 1...Rxb4
- 2.Rxd2#
- 1...Rc2
- 2.Sb3#
- 1...Rb3
- 2.Sxb3#
- 1...Sc6
- 2.Saxc6#
- 1...Se6
- 2.Sac6#
- 1...Sb7
- 2.Sac6#
- 1...Sf7
- 2.Sac6#
- 1...f5
- 2.Qxd8#
- 1...Rb1!
- 1...Rxb4
- 1.Be6?
- 1...Rxb4
- 2.Rxd2#
- 1...Rb1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 2.Sb3#
- 1...Rb3
- 2.Sc2#
- 2.Sxb3#
- 1...Sc6
- 2.Sbxc6#
- 2.Saxc6#
- 1...Sb7
- 2.Sbc6#
- 2.Sac6#
- 1...Sf7
- 2.Sbc6#
- 2.Sac6#
- 1...f5
- 2.Qxd8#
- 1...Sxe6!
- 1...Rxb4
- 1.Bd6?
- 1...Rxb4
- 2.Rxd2#
- 1...Rb1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rb3
- 2.Sc2#
- 1...Sc6
- 2.Sbxc6#
- 1...Se6
- 2.Sbc6#
- 1...Sb7
- 2.Sbc6#
- 1...Sf7
- 2.Sbc6#
- 1...f5!
- 1...Rxb4
- 1.Be7?
- 1...Rxb4
- 2.Rxd2#
- 1...Rb1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rb3
- 2.Sc2#
- 1...Sc6
- 2.Sbxc6#
- 1...Se6
- 2.Sbc6#
- 1...Sb7
- 2.Sbc6#
- 1...Sf7
- 2.Sbc6#
- 1...f5!
- 1...Rxb4
- 1.Qg3?
- threat
- 2.Qf4#
- 2.Qd6#
- 1...Sxe3
- 2.Qxe3#
- 1...Se5
- 2.Qf4#
- 1...Se6
- 2.Sbc6#
- 2.Qd6#
- 1...Sb7
- 2.Sbc6#
- 2.Qf4#
- 1...Sf7
- 2.Sbc6#
- 2.Qf4#
- 1...Sxf2+!
- threat
- 1.Qxf6+?
- 1...Se5
- 2.Qxe5#
- 2.Qf4#
- 2.Qb6#
- 2.Qd6#
- 1...Sxf6!
- 1...Se5
- 1.Be2?
- Keys
- 1.Bf1!
- 1...Rxb4
- 2.Rxd2#
- 1...Rb1
- 2.Rxd2#
- 1...Rc2
- 2.Sb3#
- 1...Rb3
- 2.Sxb3#
- 1...Sc6
- 2.Saxc6#
- 1...Se6
- 2.Sac6#
- 1...Sb7
- 2.Sac6#
- 1...Sf7
- 2.Sac6#
- 1...f5
- 2.Qxd8#
- 1...Rxb4
- 1.Bf1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,P_PINR(A)::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(c);N_GUARD::S(E)
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- S(j);N_GUARD::S(E),XS(j)
- S(j);N_GUARD::S(E)
- P(i);OGATE::QAR(G),XS(j)
- Tries
- Try
- B(F);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::S(H),XR(c)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- P(i);OGATE::QAR(G),XS(j)
- Refutation
- R(c);P_PINR(A)
- Try
- B(F);
- Vars
- R(c);N_GUARD,P_PINR(A)::S(E)
- R(c);N_GUARD::S(E),XR(c)
- P(i);OGATE::QAR(G),XS(j)
- Refutation
- R(c);XB(F)
- Try
- B(F);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::S(H),XR(c)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- P(i);OGATE::QAR(G),XS(j)
- Refutation
- R(c);P_PINR(A)
- Try
- B(F);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::S(H),XR(c)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- P(i);OGATE::QAR(G),XS(j)
- Refutation
- R(c);P_PINR(A)
- Try
- B(F);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD,P_PINR(A)::S(E)
- P(i);OGATE::QAR(G),XS(j)
- Refutation
- S(j);XB(F)
- Try
- B(I);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD,P_PINR(A)::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(c);N_GUARD::S(E)
- S(j);N_GUARD::S(E),XS(j)
- S(j);N_GUARD::S(E)
- Refutation
- P(i);
- Try
- B(I);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD,P_PINR(A)::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(c);N_GUARD::S(E)
- S(j);N_GUARD::S(E),XS(j)
- S(j);N_GUARD::S(E)
- Refutation
- P(i);
- Try
- Q(G);N_PINS(g)
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XR(D)::QAB1(G),XS(g)
- S(g);::QAR2(G)
- Refutation
- S(g);CHECK,XP(C)
- Try
- Q(G);CHECK,N_PINS(g),XP(i)
- Refutation
- S(g);XQ(G)
- Try
- Actual
- B(F);
- Vars
- R(c);N_GUARD,XS(E)::R(A),XP(d)
- R(c);N_GUARD::R(A),XP(d)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::S(H),XR(c)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- P(i);OGATE::QAR(G),XS(j)
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