MESON Chess Problem Database
Problem Display
PID: 10493 (4R3/2p3p1/5pP1/RNbNqk1P/5n1Q/2P2P1b/8/1KB5 w - - 0 1)
Lipton, Michael
3rd HM., Die Schwalbe, 1965/I
#2
11 + 8
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 23 | Die Schwalbe | 1969 |
SOLUTION
- SOUND
- Sets
- 1...Qxc3
- 2.Qxf4#
- 1...Qe1
- 2.Qxf4#
- 1...Qe2
- 2.Qxf4#
- 1...Qe4+
- 2.fxe4#
- 1...Qxd5
- 2.Qxf4#
- 1...Qe6
- 2.Qxf4#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Se2
- 2.Qxh3#
- 1...Sg2
- 2.Qxh3#
- 1...Sd3
- 2.Qxh3#
- 1...Sxd5
- 2.Qxh3#
- 1...Sxh5
- 2.Qxh5#
- 1...Se6
- 2.Qxh3#
- 1...Sxg6
- 2.Qxh3#
- 1...Qxc3
- Tries
- 1.Sd6+?
- 1...Qxd6
- 2.Se3#
- 1...Bxd6
- 2.Se3#
- 1...cxd6!
- 1...Qxd6
- 1.Sbxc7?
- 1...Qe4+
- 2.fxe4#
- 1...Qxc3
- 2.Qxf4#
- 1...Qxc7
- 2.Se3#
- 1...Qxd5
- 2.Qxf4#
- 1...Qxe8
- 2.Qxf4#
- 1...Sxd5
- 2.Qxh3#
- 1...Sxh5
- 2.Qxh5#
- 1...Sxg6
- 2.Qxh3#
- 1...Qe6
- 2.Qxf4#
- 1...Qe7
- 2.Qxf4#
- 1...Qd6
- 2.Se3#
- 1...Qe1
- 2.Qxf4#
- 1...Qe2
- 2.Qxf4#
- 1...Qe3
- 2.Sxe3#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bg1
- 2.Se7#
- 1...Bf2
- 2.Se7#
- 1...Ba3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 2.Se7#
- 1...Bb4
- 2.Se3#
- 1...Bd4
- 2.Se7#
- 1...Bb6
- 2.Se7#
- 1...Bd6
- 2.Se3#
- 1...Ba7
- 2.Se7#
- 1...Be7
- 2.Se3#
- 2.Sxe7#
- 1...Bf8
- 2.Se3#
- 1...Se2
- 2.Qxh3#
- 1...Sg2
- 2.Qxh3#
- 1...Sd3
- 2.Qxh3#
- 1...Se6
- 2.Qxh3#
- 1...Qd4!
- 1...Qe4+
- 1.Sd6+?
- Keys
- 1.Sdxc7!
- 1...Qe4+
- 2.fxe4#
- 1...Qxc3
- 2.Sd6#
- 2.Qxf4#
- 1...Qxc7
- 2.Sd4#
- 1...Qxe8
- 2.Qxf4#
- 1...Sxh5
- 2.Qxh5#
- 1...Sxg6
- 2.Qxh3#
- 1...Qe6
- 2.Qxf4#
- 1...Qe7
- 2.Qxf4#
- 1...Qd4
- 2.Sxd4#
- 1...Qd6
- 2.Sxd6#
- 1...Qe1
- 2.Sd4#
- 2.Sd6#
- 2.Qxf4#
- 1...Qe2
- 2.Sd4#
- 2.Sd6#
- 2.Qxf4#
- 1...Qe3
- 2.Sd6#
- 1...Qd5
- 2.Qxf4#
- 1...Bf1
- 2.Qg4#
- 1...Bg2
- 2.Qg4#
- 1...Bg4
- 2.Qxg4#
- 1...Bg1
- 2.Sd6#
- 1...Bf2
- 2.Sd6#
- 1...Ba3
- 2.Sd4#
- 1...Be3
- 2.Sd6#
- 1...Bb4
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 2.Sd6#
- 1...Bb6
- 2.Sd6#
- 1...Bd6
- 2.Sd4#
- 2.Sxd6#
- 1...Ba7
- 2.Sd6#
- 1...Be7
- 2.Sd4#
- 1...Bf8
- 2.Sd4#
- 1...Se2
- 2.Qxh3#
- 1...Sg2
- 2.Qxh3#
- 1...Sd3
- 2.Qxh3#
- 1...Sd5
- 2.Qxh3#
- 1...Se6
- 2.Qxh3#
- 1...Qe4+
- 1.Sdxc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 3
- Sets
- Q(d);N_GUARD,XP(C)::QAR1(E),XS(b)
- Q(d);N_GUARD,P_PINB(B)::QAR1(E),XS(b)
- Q(d);N_GUARD::QAR1(E),XS(b)
- Q(d);CHECK,OGATE::P(D),XQ(d)
- Q(d);N_GUARD,XS(H)::QAR1(E),XS(b)
- B(a);N_GUARD::QAB1(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- S(b);N_GUARD::QAB(E),XB(a)
- S(b);N_GUARD,XS(H)::QAB(E),XB(a)
- S(b);OGATE,XP(I)::QAR2(E),XS(b)
- S(b);N_GUARD,XP(J)::QAB(E),XB(a)
- Tries
- Try
- S(G);CHECK
- Vars
- Q(d);XS(G)::S(H)
- B(c);XS(G)::S(H)
- Refutation
- P(g);XS(G)
- Try
- S(G);XP(g)
- Vars
- Q(d);CHECK,OGATE::P(D),XQ(d)
- Q(d);N_GUARD,XP(C)::QAR1(E),XS(b)
- Q(d);N_GUARD,S_CUTB(c),XS(G)::S(H)
- Q(d);N_GUARD,XS(H)::QAR1(E),XS(b)
- Q(d);N_GUARD,XR(K)::QAR1(E),XS(b)
- S(b);N_GUARD,XS(H)::QAB(E),XB(a)
- S(b);OGATE,XP(I)::QAR2(E),XS(b)
- S(b);N_GUARD,XP(J)::QAB(E),XB(a)
- Q(d);N_GUARD::QAR1(E),XS(b)
- Q(d);N_GUARD,S_CUTB(c)::S(H)
- Q(d);N_GUARD,P_PINB(B)::QAR1(E),XS(b)
- Q(d);N_GUARD,S_CUTB(c)::S(H),XQ(d)
- B(a);N_GUARD::QAB1(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(c);N_GUARD,S_CUTQ(d)::S(H)
- S(b);N_GUARD::QAB(E),XB(a)
- Refutation
- Q(d);
- Try
- Actual
- S(H);XP(g)
- Vars
- Q(d);CHECK,OGATE::P(D),XQ(d)
- Q(d);N_GUARD,S_CUTB(c),XS(H)::S(G)
- Q(d);N_GUARD,XR(K)::QAR1(E),XS(b)
- S(b);OGATE,XP(I)::QAR2(E),XS(b)
- S(b);N_GUARD,XP(J)::QAB(E),XB(a)
- Q(d);N_GUARD::QAR1(E),XS(b)
- Q(d);N_GUARD,S_CUTB(c)::S(G),XQ(d)
- Q(d);N_GUARD,S_CUTB(c)::S(G)
- B(a);N_GUARD::QAB1(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(c);N_GUARD,S_CUTQ(d)::S(G)
- S(b);N_GUARD::QAB(E),XB(a)
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CSS/Javascript (jQuery, Bootstrap & DataTables).