MESON Chess Problem Database
Problem Display
PID: 132061 (1B1N2br/4R2p/pR6/5kPn/5N1K/1Qp1p3/r1p1n3/8 w - - 0 1)
Myllyniemi, Matti Arvo
3rd HM., Tidskrift for Schack, 1956
#2
8 + 11
| 56 | The Problemist | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxc2#
- 1...Ra3
- 2.Qxc2#
- 1...Ra5
- 2.Qxc2#
- 1...Bd5
- 2.Qxd5#
- 1...Be6
- 2.Qxe6#
- 1...Sexf4
- 2.Re5#
- 1...Sg3
- 2.Rf6#
- 1...Shxf4
- 2.Rf6#
- 2.Re5#
- 1...Sf6
- 2.Rxf6#
- 1...Sg7
- 2.Rf6#
- 1...Ra1
- Tries
- 1.Sxe2?
- threat
- 2.Sd4#
- 2.Re5#
- 1...Be6
- 2.Qxe6#
- 1...Sf6
- 2.Rxf6#
- 1...Ra5
- 2.Sd4#
- 2.Qxc2#
- 1...Ra4+!
- threat
- 1.Sg2?
- threat
- 2.Sxe3#
- 2.Re5#
- 1...Be6
- 2.Qxe6#
- 1...Sf6
- 2.Rxf6#
- 1...c1Q
- 2.Re5#
- 1...c1B
- 2.Re5#
- 1...Ra5
- 2.Sxe3#
- 2.Qxc2#
- 1...Ra4+!
- threat
- 1.Sh3?
- threat
- 2.Re5#
- 1...Be6
- 2.Qxe6#
- 1...Sf6
- 2.Rxf6#
- 1...Ra5
- 2.Qxc2#
- 1...Ra4+!
- threat
- 1.Sxh5?
- threat
- 2.Sg7#
- 2.Rf6#
- 2.Re5#
- 1...Be6
- 2.Qxe6#
- 1...Ra5
- 2.Sg7#
- 2.Rf6#
- 2.Qxc2#
- 1...Ra4+!
- threat
- 1.Sf7?
- threat
- 2.Sh6#
- 2.Qd5#
- 2.Qe6#
- 1...Sexf4
- 2.Sh6#
- 2.Re5#
- 1...Shxf4
- 2.Sh6#
- 2.Rf6#
- 2.Re5#
- 1...Ra5
- 2.Sh6#
- 2.Qxc2#
- 2.Qe6#
- 1...Sd4
- 2.Sh6#
- 2.Qd5#
- 1...Sf6
- 2.Sh6#
- 2.Rxf6#
- 2.Qe6#
- 1...Sg7
- 2.Sh6#
- 2.Rf6#
- 2.Qd5#
- 1...h6
- 2.Qd5#
- 2.Qe6#
- 1...Bxf7!
- threat
- 1.Rb5+?
- 1...Bd5
- 2.Rxd5#
- 2.Qxd5#
- 1...axb5!
- 1...Bd5
- 1.Rbe6?
- threat
- 2.Qd5#
- 1...Bxe6
- 2.Qxe6#
- 1...Shxf4
- 2.Rf6#
- 1...Ra5
- 2.Qxc2#
- 1...Sf6
- 2.Rxf6#
- 1...Sexf4!
- threat
- 1.Ree6?
- threat
- 2.Qd5#
- 1...Bxe6
- 2.Qxe6#
- 1...Sexf4
- 2.Re5#
- 1...Shxf4
- 2.Re5#
- 1...Ra5
- 2.Qxc2#
- 1...Sf6!
- threat
- 1.Rf7+?
- 1...Ke4
- 2.Qd5#
- 1...Sf6
- 2.Qd5#
- 2.Qe6#
- 1...Bxf7!
- 1...Ke4
- 1.Qc4?
- threat
- 2.Re5#
- 2.Qd3#
- 2.Qe4#
- 1...Sexf4
- 2.Re5#
- 2.Qe4#
- 1...Shxf4
- 2.Rf6#
- 2.Re5#
- 2.Qe4#
- 1...c1S
- 2.Re5#
- 2.Qe4#
- 1...Ra4
- 2.Re5#
- 1...Ra5
- 2.Qd3#
- 2.Qe4#
- 1...Bd5
- 2.Re5#
- 2.Qxd5#
- 1...Be6
- 2.Qd3#
- 2.Qxe6#
- 1...Sc1
- 2.Re5#
- 2.Qe4#
- 1...Seg3
- 2.Re5#
- 1...Sd4
- 2.Qd3#
- 1...Shg3
- 2.Rf6#
- 2.Re5#
- 1...Sf6
- 2.Rxf6#
- 2.Re5#
- 1...Bxc4!
- threat
- 1.Qf7+?
- 1...Sf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Bxf7!
- 1...Sf6
- 1.Qxg8?
- threat
- 2.Qd5#
- 2.Qe6#
- 1...Sexf4
- 2.Re5#
- 1...Shxf4
- 2.Rf6#
- 2.Re5#
- 2.Qf7#
- 1...Ra5
- 2.Qe6#
- 1...Sd4
- 2.Qd5#
- 1...Sf6
- 2.Rxf6#
- 2.Qe6#
- 1...Sg7
- 2.Rf6#
- 2.Qd5#
- 2.Qf7#
- 1...Rxg8!
- threat
- 1.Qxc3?
- threat
- 2.Qe5#
- 2.Qd3#
- 1...Sexf4
- 2.Re5#
- 2.Qe5#
- 1...Shxf4
- 2.Rf6#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...c1S
- 2.Qe5#
- 1...Ra3
- 2.Qe5#
- 1...Ra4
- 2.Qe5#
- 1...Ra5
- 2.Qxc2#
- 2.Qd3#
- 1...Bc4
- 2.Qe5#
- 1...Bd5
- 2.Qe5#
- 1...Sc1
- 2.Qe5#
- 1...Seg3
- 2.Qe5#
- 1...Sd4
- 2.Qd3#
- 1...Shg3
- 2.Rf6#
- 2.Qe5#
- 2.Qf6#
- 1...Sf6
- 2.Rxf6#
- 2.Qe5#
- 2.Qxf6#
- 1...Sxc3!
- threat
- 1.Qb5+?
- 1...Bd5
- 2.Qxd5#
- 1...axb5!
- 1...Bd5
- 1.Sxe2?
- Keys
- 1.Sde6!
- threat
- 2.Qd5#
- 1...Ke4
- 2.Qd5#
- 1...Bxe6
- 2.Qxe6#
- 1...Sexf4
- 2.Sd4#
- 1...Shxf4
- 2.Sg7#
- 1...Ra5
- 2.Qxc2#
- 1...Sf6
- 2.Sg7#
- threat
- 1.Sde6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::QAB(A),XP(b)
- B(j);N_GUARD::QAR2(A),XB(j)
- B(j);N_GUARD::QAB1(A),XB(j)
- S(c);SBLOCK,XS(B)::R1(F)
- S(g);N_GUARD::R1(E)
- S(g);N_GUARD::R1(E),XS(g)
- Tries
- Try
- S(B);XS(c)
- Threat
- DUALS(2)
- Vars
- B(j);N_GUARD::QAB1(A),XB(j)
- S(g);N_GUARD::R1(E),XS(g)
- Refutation
- R(a);CHECK
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- B(j);N_GUARD::QAB1(A),XB(j)
- S(g);N_GUARD::R1(E),XS(g)
- P(b);::R1(F)
- Refutation
- R(a);CHECK
- Try
- S(B);
- Threat
- R1(F)
- Vars
- B(j);N_GUARD::QAB1(A),XB(j)
- S(g);N_GUARD::R1(E),XS(g)
- R(a);N_GUARD::QAB(A),XP(b)
- Refutation
- R(a);CHECK
- Try
- S(B);XS(g)
- Threat
- DUALS(3)
- Vars
- B(j);N_GUARD::QAB1(A),XB(j)
- Refutation
- R(a);CHECK
- Try
- S(H);
- Threat
- DUALS(3)
- Refutation
- B(j);XS(H)
- Try
- R(E);CHECK
- Refutation
- P(h);XR(E)
- Try
- R(E);
- Threat
- QAR2(A)
- Vars
- B(j);OGATE,XR(E)::QAB1(A),XB(j)
- S(g);N_GUARD,XS(B)::R1(E)
- R(a);N_GUARD::QAB(A),XP(b)
- S(g);N_GUARD::R1(E),XS(g)
- Refutation
- S(c);XS(B)
- Try
- R(F);
- Threat
- QAR2(A)
- Vars
- B(j);OGATE,XR(F)::QAB1(A),XB(j)
- S(c);SBLOCK,XS(B)::R1(F)
- S(g);SBLOCK,XS(B)::R1(F)
- R(a);N_GUARD::QAB(A),XP(b)
- Refutation
- S(g);
- Try
- R(F);CHECK
- Vars
- K(f);S_FLIGHT::QAB1(A)
- Refutation
- B(j);XR(F)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(a);::R1(F)
- S(c);::R1(F)
- S(c);::QAB(A)
- Refutation
- B(j);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- B(j);XQ(A)
- Try
- Q(A);XB(j)
- Threat
- DUALS(2)
- Vars
- S(c);SBLOCK,XS(B)::R1(F)
- R(a);::QAB1(A)
- S(c);::QAR2(A)
- Refutation
- R(k);XQ(A)
- Try
- Q(A);XP(d)
- Threat
- DUALS(2)
- Vars
- P(b);::QAR1(A)
- R(a);::QAR1(A)
- R(a);P_PINS(B)::QAR1(A)
- B(j);::QAR1(A)
- S(c);::QAR1(A)
- S(c);::QAB(A)
- Refutation
- S(c);XQ(A)
- Try
- Q(A);CHECK
- Vars
- B(j);N_GUARD,P_SPINB(j)::QAR2(A),XB(j)
- Refutation
- P(h);XQ(A)
- Try
- Actual
- S(H);
- Threat
- QAR2(A)
- Vars
- K(f);S_FLIGHT::QAB1(A)
- B(j);OGATE,XS(H)::QAB1(A),XB(j)
- S(c);N_GUARD,XS(B)::S(H)
- S(g);N_GUARD,XS(B)::S(H)
- R(a);N_GUARD::QAB(A),XP(b)
- S(g);N_GUARD::S(H)
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