MESON Chess Problem Database
Problem Display
PID: 226384 (6r1/2P1pN2/1p2k2r/pB5p/2Kn2P1/Q3P3/3RpR2/B7 w - - 0 1)
Jonsson, Gustav
1st Prize, Vart Hem, 1938/IV
#2
10 + 9
| 2048 | Tuxens skakopgaver (Leif C Schmidt) | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Rxg4
- 2.c8Q#
- 2.c8B#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Rg6
- 2.c8Q#
- 2.c8B#
- 1...Rg7
- 2.c8Q#
- 2.c8B#
- 1...Rd8
- 2.cxd8S#
- 1...Sc2
- 2.Bd7#
- 1...Sb3
- 2.Bd7#
- 1...Rxg4
- Tries
- 1.Kxd4?
- threat
- 2.Qa2#
- 2.Qb3#
- 1...Rd8+
- 2.Sxd8#
- 2.cxd8S#
- 1...Rg5
- 2.Sxg5#
- 2.Sd8#
- 2.c8Q#
- 2.c8B#
- 1...a4
- 2.Qa2#
- 1...Rxg4+!
- threat
- 1.Sg5+?
- 1...Ke5
- 2.Bxd4#
- 2.Rf5#
- 2.exd4#
- 1...Rxg5!
- 1...Ke5
- 1.Rxd4?
- threat
- 2.Bd7#
- 2.Re4#
- 1...Rxg4
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Rg5
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Rd8
- 2.Re4#
- 2.cxd8S#
- 1...Rf6!
- threat
- 1.Qc5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Rf6
- 2.Qd5#
- 1...Sf3
- 2.Qd5#
- 2.Qf5#
- 1...Sf5
- 2.Qd5#
- 2.Qxf5#
- 1...Rg5
- 2.Sxg5#
- 2.Sd8#
- 2.c8Q#
- 2.c8B#
- 1...Rd8
- 2.Sg5#
- 2.Sxd8#
- 2.Qe5#
- 2.cxd8S#
- 1...Sc6
- 2.Qd5#
- 2.Qf5#
- 2.Qxc6#
- 1...bxc5!
- threat
- 1.Qb3?
- threat
- 2.Kxd4#
- 1...Rxg4
- 2.c8Q#
- 2.c8B#
- 1...Sxb3
- 2.Bd7#
- 1...Sxb5
- 2.Kxb5#
- 1...Sf3
- 2.Kd3#
- 1...Sf5
- 2.Kd3#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Rd8
- 2.cxd8S#
- 1...Sc2
- 2.Kc3#
- 2.Kd3#
- 2.Bd7#
- 1...Sc6
- 2.Kc3#
- 1...a4!
- threat
- 1.Qd3?
- threat
- 2.Qe4#
- 1...Rxg4
- 2.c8Q#
- 2.c8B#
- 1...Sf3
- 2.Qf5#
- 2.Qd5#
- 1...Sf5
- 2.Qxf5#
- 2.Qd5#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Sc6
- 2.Qf5#
- 2.Qd5#
- 2.Qd7#
- 1...Rf6!
- threat
- 1.exd4?
- threat
- 2.Rdxe2#
- 2.Qe3#
- 2.d5#
- 1...Rxg4
- 2.Sd8#
- 2.c8Q#
- 2.c8B#
- 1...e1Q
- 2.d5#
- 1...e1S
- 2.Rde2#
- 2.Qe3#
- 2.d5#
- 1...e1B
- 2.Rde2#
- 2.Qe3#
- 2.d5#
- 1...e1R
- 2.d5#
- 1...Rg5
- 2.Sxg5#
- 2.Sd8#
- 2.c8Q#
- 2.c8B#
- 1...Rd8
- 2.Sg5#
- 2.Sxd8#
- 2.Rdxe2#
- 2.Qe3#
- 2.cxd8S#
- 1...Rf6!
- threat
- 1.Kxd4?
- Keys
- 1.Qa2!
- threat
- 2.Kxd4#
- 1...Rxg4
- 2.c8Q#
- 2.c8B#
- 1...Sxb5
- 2.Kxb5#
- 1...Sf3
- 2.Kd3#
- 1...Sf5
- 2.Kd3#
- 1...Rg5
- 2.c8Q#
- 2.c8B#
- 1...Rd8
- 2.cxd8S#
- 1...Sc2
- 2.Kc3#
- 2.Kd3#
- 2.Bd7#
- 1...Sb3
- 2.Bd7#
- 1...Sc6
- 2.Kc3#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(i);N_GUARD,XP(G)::P=Q
- R(i);N_GUARD::P=Q
- R(i);OGATE::PXR(i)=S
- S(b);::B(H)
- Tries
- Try
- K(F);P-FLIGHT,XS(b)
- Threat
- DUALS(2)
- Vars
- P(c);::QAB(D)
- Refutation
- R(i);CHECK,XP(G)
- Try
- S(J);CHECK
- Refutation
- R(i);XS(J)
- Try
- R(B);XS(b)
- Threat
- DUALS(2)
- Refutation
- R(g);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB1(D)
- Refutation
- P(e);XQ(D)
- Try
- Q(D);
- Threat
- QAB(D)+K(F),XS(b)
- Vars
- R(i);N_GUARD,XP(G)::P=Q
- S(b);XQ(D)::B(H)
- S(b);XB(H)::QAB(D)+K(F),XS(b)
- S(b);N_GUARD::QAB(D)+K(F)
- R(i);N_GUARD::P=Q
- R(i);OGATE::PXR(i)=S
- Refutation
- P(c);
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- R(i);N_GUARD,XP(G)::P=Q
- R(i);N_GUARD::P=Q
- Refutation
- R(g);
- Try
- P(E);XS(b)
- Threat
- DUALS(3)
- Vars
- P(a);::P(E)
- Refutation
- R(g);
- Try
- Actual
- Q(D);
- Threat
- QAB(D)+K(F),XS(b)
- Vars
- R(i);N_GUARD,XP(G)::P=Q
- S(b);XB(H)::QAB(D)+K(F),XS(b)
- S(b);N_GUARD::QAB(D)+K(F)
- R(i);N_GUARD::P=Q
- R(i);OGATE::PXR(i)=S
- S(b);::B(H)
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