MESON Chess Problem Database
Problem Display
PID: 200267 (8/Q6p/1R3pBP/2bP4/1NPkN2p/1Pp1p1BR/8/K7 w - - 0 1)
Froberg, Johan Hilding Laurentius
Hultberg, Gustav Herbert
Suomen Shakki, 1990
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxb6
- 2.Qxb6#
- 1...Bd6
- 2.Rxd6#
- 1...Be7
- 2.Rd6#
- 1...Bf8
- 2.Rd6#
- 1...Bxb6
- Tries
- 1.Sf2?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Rxh4#
- 1...Bxb4
- 2.Rxb4#
- 1...Bxb6
- 2.Qxb6#
- 1...exf2
- 2.Sc2#
- 1...hxg3
- 2.Sc6#
- 1...Bd6
- 2.Rxd6#
- 1...Be7
- 2.Rd6#
- 1...Bf8
- 2.Rd6#
- 1...e2
- 2.Sc2#
- 1...f5
- 2.Sc2#
- 2.Sc6#
- 2.Qg7#
- 1...c2!
- threat
- 1.Sg5?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Sf3#
- 2.Se6#
- 2.Rxh4#
- 1...Bxb4
- 2.Se6#
- 2.Rxb4#
- 1...Bxb6
- 2.Se6#
- 2.Qxb6#
- 1...hxg3
- 2.Sc6#
- 2.Sf3#
- 1...fxg5
- 2.Sc2#
- 2.Sc6#
- 2.Qg7#
- 1...hxg6
- 2.Rxh4#
- 1...Bd6
- 2.Se6#
- 2.Rxd6#
- 1...Be7
- 2.Se6#
- 2.Rd6#
- 1...Bf8
- 2.Se6#
- 2.Rd6#
- 1...e2
- 2.Sc2#
- 1...f5
- 2.Qg7#
- 1...c2!
- threat
- 1.Sxf6?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Rxh4#
- 1...Bxb4
- 2.Rxb4#
- 1...Bxb6
- 2.Qxb6#
- 1...hxg3
- 2.Sc6#
- 1...hxg6
- 2.Rxh4#
- 1...Bd6
- 2.Rxd6#
- 1...Be7
- 2.Rd6#
- 1...Bf8
- 2.Rd6#
- 1...e2
- 2.Sc2#
- 1...c2!
- threat
- 1.Re6?
- threat
- 2.Qxc5#
- 1...Bb6
- 2.Qxb6#
- 1...Bxa7!
- threat
- 1.Sf2?
- Keys
- 1.Sd6!
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Sb5#
- 2.Rxh4#
- 1...Bxb4
- 2.Rxb4#
- 1...Bxb6
- 2.Qxb6#
- 1...Bxd6
- 2.Rxd6#
- 1...hxg3
- 2.Sc6#
- 1...hxg6
- 2.Rxh4#
- 1...c2
- 2.Sb5#
- 1...e2
- 2.Sc2#
- 1...f5
- 2.Qg7#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- B(e);OGATE,P_SPINB(e),XR(I)::QAB(L),XB(e)
- B(e);OGATEB::QAB(L)+R(I),XB(e)
- B(e);OGATEB::QAB(L)+R(I)
- Tries
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- B(e);OGATE,XS(E)::QAB(L)+R(I),XB(e)
- B(e);OGATE,P_SPINB(e),XR(I)::QAB(L),XB(e)
- P(b);XS(G)::S(E)
- P(d);XB(C)::S(E)
- B(e);OGATEB::QAB(L)+R(I),XB(e)
- B(e);OGATEB::QAB(L)+R(I)
- P(b);::S(E)
- Refutation
- P(a);
- Try
- S(G);
- Threat
- DUALS(5)
- Vars
- P(g);XB(J)::R(D),XP(d)
- P(b);::S(E)
- P(f);OGATEB::QAB(L)
- Refutation
- P(a);
- Try
- S(G);XP(f)
- Threat
- DUALS(3)
- Vars
- B(e);OGATE,XS(E)::QAB(L)+R(I),XB(e)
- B(e);OGATE,P_SPINB(e),XR(I)::QAB(L),XB(e)
- P(d);XB(C)::S(E)
- P(g);XB(J)::R(D),XP(d)
- B(e);OGATEB::QAB(L)+R(I),XB(e)
- B(e);OGATEB::QAB(L)+R(I)
- P(b);::S(E)
- Refutation
- P(a);
- Try
- R(I);P_PINB(e)
- Threat
- QAB1(L),XB(e)
- Vars
- B(e);OGATEB::QAB(L),XB(e)
- Refutation
- B(e);N_SPINB(e),XQ(L)
- Try
- Actual
- S(G);
- Threat
- DUALS(4)
- Vars
- B(e);OGATE,XS(E)::QAB(L)+R(I),XB(e)
- B(e);OGATE,P_SPINB(e),XR(I)::QAB(L),XB(e)
- B(e);OGATE,XS(G)::QAB(L)+R(I),XB(e)
- P(d);XB(C)::S(E)
- P(g);XB(J)::R(D),XP(d)
- P(a);::S(G)
- P(b);::S(E)
- P(f);OGATEB::QAB(L)
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