MESON Chess Problem Database
Problem Display
PID: 176524 (Qb6/1n1rp1RK/3Pk3/1BP4R/p4p1B/n3N3/4p3/8 w - - 0 1)
Myllyniemi, Matti Arvo
Schach-Echo, 1979
#2
9 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxd6
- 2.Rxe7#
- 1...Rd8
- 2.Rxe7#
- 1...Bxd6
- 2.Qg8#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.Bc4#
- 1...Sc2
- 2.Bc4#
- 1...Sc4
- 2.Bxc4#
- 1...Sa5
- 2.Qe4#
- 2.Qd5#
- 1...Sxc5
- 2.Qd5#
- 1...Sxd6
- 2.Qd5#
- 1...Sd8
- 2.Qe4#
- 2.Qd5#
- 1...exd6
- 2.Bxd7#
- 1...Rxd6
- Tries
- 1.Sc2?
- threat
- 2.Sd4#
- 1...Rxd6
- 2.Rxe7#
- 1...Sxc2
- 2.Bc4#
- 1...Sxc5
- 2.Qd5#
- 1...Sxb5!
- threat
- 1.Sd5?
- threat
- 2.Sxf4#
- 1...Bxd6
- 2.Qg8#
- 1...f3
- 2.Sf4#
- 1...Sxc5!
- threat
- 1.Bxe2?
- threat
- 2.Bg4#
- 1...Sxc5
- 2.Qd5#
- 1...Sxd6
- 2.Qd5#
- 1...f3!
- threat
- 1.Rf5?
- threat
- 2.Rg6#
- 1...exd6
- 2.Bxd7#
- 1...fxe3!
- threat
- 1.Qxb7?
- threat
- 2.Bxd7#
- 2.Qe4#
- 2.Qd5#
- 2.Qxd7#
- 1...Rxd6
- 2.Rxe7#
- 2.Qe4#
- 2.Qxe7#
- 1...Bxd6
- 2.Bxd7#
- 2.Qd5#
- 2.Qxd7#
- 1...Sxb5
- 2.Qe4#
- 2.Qd5#
- 1...Rc7
- 2.Qe4#
- 2.Qd5#
- 1...Rd8
- 2.Rxe7#
- 2.Qe4#
- 2.Qd5#
- 2.Qxe7#
- 1...Bc7
- 2.Qe4#
- 2.Qd5#
- 1...Sc4
- 2.Bxc4#
- 2.Bxd7#
- 2.Qd5#
- 2.Qxd7#
- 1...Rxb7!
- threat
- 1.Qxa4?
- threat
- 2.Bxd7#
- 2.Qe4#
- 1...Rxd6
- 2.Rxe7#
- 2.Qe4#
- 1...Bxd6
- 2.Bxd7#
- 1...Sxb5
- 2.Qb3#
- 2.Qa2#
- 2.Qc4#
- 2.Qe4#
- 1...Sxd6
- 2.Bxd7#
- 1...Rc7
- 2.Qe4#
- 1...Rd8
- 2.Rxe7#
- 2.Qe4#
- 1...Sc4
- 2.Bxc4#
- 2.Bxd7#
- 2.Qxc4#
- 1...Sxc5!
- threat
- 1.Sc2?
- Keys
- 1.Sg2!
- threat
- 2.Sxf4#
- 1...Bxd6
- 2.Qg8#
- 1...Sxc5
- 2.Qd5#
- 1...f3
- 2.Sf4#
- threat
- 1.Sg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(g);N_GUARD,XP(F)::R1(G),XP(h)
- R(g);N_GUARD::R1(G),XP(h)
- B(i);OGATE,XP(F)::QAB(I)
- B(i);OGATE::QAB(I)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- S(f);OGATE,XP(D)::QAB1(I)
- S(f);OGATE,XP(F)::QAB1(I)
- P(h);P_PINR(G),XP(F)::B(C),XR(g)
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- R(g);N_GUARD,XP(F)::R1(G),XP(h)
- S(b);N_GUARD,XS(A)::B(C)
- S(f);OGATE,XP(D)::QAB1(I)
- Refutation
- S(b);XB(C)
- Try
- S(A);
- Threat
- S(A),XP(d)
- Vars
- B(i);OGATE,XP(F)::QAB(I)
- P(d);::S(A)
- Refutation
- S(f);XP(D)
- Try
- B(C);XP(a)
- Threat
- B(C)
- Vars
- S(f);OGATE,XP(D)::QAB1(I)
- S(f);OGATE,XP(F)::QAB1(I)
- Refutation
- P(d);
- Try
- R(E);
- Threat
- R(G)
- Vars
- P(h);P_PINR(G),XP(F)::B(C),XR(g)
- Refutation
- P(d);XS(A)
- Try
- Q(I);XS(f)
- Threat
- DUALS(4)
- Refutation
- R(g);XQ(I)
- Try
- Q(I);XP(c)
- Threat
- DUALS(2)
- Vars
- B(i);XP(F)::B(C),XR(g)
- S(f);XP(F)::B(C),XR(g)
- R(g);::QAR2(I)
- Refutation
- S(f);XP(D)
- Try
- Actual
- S(A);
- Threat
- S(A),XP(d)
- Vars
- B(i);OGATE,XP(F)::QAB(I)
- S(f);OGATE,XP(D)::QAB1(I)
- P(d);::S(A)
Developed and maintained by Brian Stephenson.
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