MESON Chess Problem Database
Problem Display
PID: 58916 (1Bn2r2/1N2N3/Pkpr4/7R/3P4/1p3nQ1/2Pp4/Rb3B1K w - - 0 1)
Jonsson, Gustav
1st Prize, Tidskrift for Schack, 1962
#2
11 + 9
| 3747 | FIDE Album (1962-1964) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Qc7#
- 1...Rd5
- 2.Qc7#
- 1...Re6
- 2.Qc7#
- 1...Rdf6
- 2.Qc7#
- 1...Rg6
- 2.Qc7#
- 1...Rh6
- 2.Qc7#
- 1...Rdd8
- 2.Qc7#
- 1...Rf4
- 2.Sxc8#
- 1...Rf5
- 2.Sxc8#
- 1...Rff6
- 2.Sxc8#
- 1...Rf7
- 2.Sxc8#
- 1...Se1
- 2.Qxb3#
- 1...Sg1
- 2.Qxb3#
- 1...Sh2
- 2.Qxb3#
- 1...Sh4
- 2.Qxb3#
- 1...Se5
- 2.Qxb3#
- 1...Sg5
- 2.Qxb3#
- 1...c5
- 2.dxc5#
- 1...Rxd4
- Tries
- 1.Sa5?
- threat
- 2.Sc4#
- 1...Rxd4
- 2.Qc7#
- 1...Rd5
- 2.Qc7#
- 1...Rf5
- 2.Sxc8#
- 1...Se5
- 2.Qxb3#
- 1...Sg5
- 2.Qxb3#
- 1...c5
- 2.dxc5#
- 1...Ba2!
- threat
- 1.Sd5+?
- 1...Rxd5
- 2.Qc7#
- 1...cxd5!
- 1...Rxd5
- 1.Qe5?
- threat
- 2.Qa5#
- 2.Qc5#
- 1...Rd5
- 2.Qc7#
- 1...Rf5
- 2.Sxc8#
- 1...c5
- 2.Qxc5#
- 2.dxc5#
- 1...Sxe5!
- threat
- 1.Qxd6?
- threat
- 2.Sd5#
- 2.Rb5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 2.Qxc6#
- 1...Sxd4
- 2.Sd5#
- 2.Qc5#
- 2.Qc7#
- 1...Sxe7
- 2.Rb5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 1...Ba2
- 2.Sd5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 2.Qxc6#
- 1...Rf5
- 2.Sxc8#
- 2.Qc7#
- 2.Qxc6#
- 2.Qd8#
- 1...Rf6
- 2.Sd5#
- 2.Sxc8#
- 2.Rb5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 2.Qd8#
- 1...Rh8
- 2.Sd5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 2.Qxc6#
- 1...Se5
- 2.Sd5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 1...Sg5
- 2.Sd5#
- 2.Qb4#
- 2.Qc5#
- 2.Qc7#
- 2.Qxc6#
- 1...Sa7
- 2.Sd5#
- 2.Bc7#
- 2.Qc5#
- 2.Qc7#
- 1...Sxd6!
- threat
- 1.c4?
- threat
- 2.c5#
- 2.c4#
- 1...Rxd4
- 2.Qc7#
- 2.c5#
- 1...Sxd4
- 2.c5#
- 1...Sxe7
- 2.c5#
- 1...Ba2
- 2.c5#
- 1...d1Q
- 2.c5#
- 1...d1S
- 2.c5#
- 1...d1B
- 2.c5#
- 1...d1R
- 2.c5#
- 1...Rd5
- 2.Qc7#
- 1...Re6
- 2.Qc7#
- 2.c5#
- 1...Rdf6
- 2.Qc7#
- 2.c5#
- 1...Rg6
- 2.Qc7#
- 2.c5#
- 1...Rh6
- 2.Qc7#
- 2.c5#
- 1...Rd7
- 2.c5#
- 1...Rdd8
- 2.Qc7#
- 2.c5#
- 1...Rf4
- 2.Sxc8#
- 2.c5#
- 1...Rf5
- 2.Sxc8#
- 1...Rff6
- 2.Sxc8#
- 2.c5#
- 1...Rf7
- 2.Sxc8#
- 2.c5#
- 1...Rfd8
- 2.c5#
- 1...Re8
- 2.c5#
- 1...Rg8
- 2.c5#
- 1...Rh8
- 2.c5#
- 1...Bc2
- 2.c5#
- 1...Be4
- 2.c5#
- 1...Bf5
- 2.c5#
- 1...Bg6
- 2.c5#
- 1...Bh7
- 2.c5#
- 1...Se1
- 2.Qxb3#
- 2.c5#
- 1...Sg1
- 2.Qxb3#
- 2.c5#
- 1...Sh2
- 2.Qxb3#
- 2.c5#
- 1...Sh4
- 2.Qxb3#
- 2.c5#
- 1...Se5
- 2.Qxb3#
- 2.c5#
- 1...Sg5
- 2.Qxb3#
- 2.c5#
- 1...Sa7
- 2.c5#
- 1...b2
- 2.c5#
- 1...c5
- 2.dxc5#
- 1...Bd3!
- threat
- 1.Sa5?
- Keys
- 1.Sc5!
- threat
- 2.Sa4#
- 1...Rxd4
- 2.Qc7#
- 1...Rd5
- 2.Qc7#
- 1...Rf5
- 2.Sxc8#
- 1...Se5
- 2.Qxb3#
- 1...Sg5
- 2.Qxb3#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- R(g);OGATE,XP(F)::QAB1(E)
- R(g);OGATE::QAB1(E)
- R(g);OGATE,P_PINR(G)::QAB1(E)
- R(i);N_GUARD::S(J),XS(h)
- S(d);OGATE::QAR(E),XP(c)
- P(f);OGATE::P(F),XP(f)
- Tries
- Try
- S(I);
- Threat
- S(I)
- Vars
- R(g);OGATE,XP(F)::QAB1(E)
- R(g);OGATE::QAB1(E)
- R(i);N_GUARD::S(J),XS(h)
- S(d);OGATE::QAR(E),XP(c)
- P(f);OGATE::P(F),XP(f)
- Refutation
- B(a);
- Try
- S(J);CHECK
- Vars
- R(g);OGATE,XS(J)::QAB1(E)
- Refutation
- P(f);XS(J)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(g);OGATE::QAB1(E)
- R(i);N_GUARD::S(J),XS(h)
- Refutation
- S(d);XQ(E)
- Try
- Q(E);P_PINP(f),XR(g)
- Threat
- DUALS(6)
- Refutation
- S(h);N_SPINP(f),XQ(E)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(d);XP(F)::P(D)
- S(h);XS(J)::P(D)
- B(a);::P(D)
- P(b);P_PINB(B)::P(D)
- P(b);::P(D)
- R(g);OGATE::QAB1(E)
- R(g);::P(D)
- R(i);N_GUARD::S(J),XS(h)
- R(i);::P(D)
- R(i);P_PINR(G)::P(D)
- S(h);::P(D)
- P(c);::P(D)
- P(f);OGATE::P(F),XP(f)
- Refutation
- B(a);
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- R(g);OGATE,XP(F)::QAB1(E)
- R(g);OGATE::QAB1(E)
- R(i);N_GUARD::S(J),XS(h)
- S(d);OGATE::QAR(E),XP(c)
Developed and maintained by Brian Stephenson.
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