MESON Chess Problem Database
Problem Display
PID: 71818 (8/4p1rp/3Nn2R/4k1B1/1Q2Pp2/1Np1nP2/2P5/7K w - - 0 1)
Ehrenstein, Moritz
1st HM., Il Piccolo Scacchista, 1891
#2
9 + 8
| 6035 | Thirty Problems by Ehrenstein | 1946 |
SOLUTION
- SOUND
- Sets
- 1...Rxg5
- 2.Sf7#
- 1...Rg6
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rg8
- 2.Sf7#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sxc2
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qxc3#
- 2.Qd4#
- 1...Sxg5
- 2.Qxc3#
- 2.Qd4#
- 1...Sc7
- 2.Qxc3#
- 2.Qd4#
- 1...Sd8
- 2.Qxc3#
- 2.Qd4#
- 1...Sf8
- 2.Qxc3#
- 2.Qd4#
- 1...exd6
- 2.Bf6#
- 1...Rxg5
- Tries
- 1.Sc1?
- threat
- 2.Sd3#
- 1...Sc5
- 2.Qxc3#
- 1...Sc4!
- threat
- 1.Sa5?
- threat
- 2.Sc6#
- 1...Sd8
- 2.Qxc3#
- 1...Sd4!
- threat
- 1.Bxf4+?
- 1...Sxf4
- 2.Qxc3#
- 2.Qd4#
- 1...Kxf4!
- 1...Sxf4
- 1.Bh4?
- 1...Sxc2
- 2.Sc4#
- 1...exd6
- 2.Bf6#
- 1...Rg2
- 2.Sf7#
- 1...Rg3
- 2.Sf7#
- 1...Rg4
- 2.Sf7#
- 1...Rg5
- 2.Sf7#
- 1...Rg6
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rg8
- 2.Sf7#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qxc3#
- 2.Qd4#
- 1...Sg5
- 2.Qxc3#
- 2.Qd4#
- 1...Sc7
- 2.Qxc3#
- 2.Qd4#
- 1...Sd8
- 2.Qxc3#
- 2.Qd4#
- 1...Sf8
- 2.Qxc3#
- 2.Qd4#
- 1...Rg1+!
- 1...Sxc2
- 1.Qxc3+?
- 1...Sd4
- 2.Qxd4#
- 1...Kxd6!
- 1...Sd4
- 1.Qa5+?
- 1...Sd5
- 2.Sc4#
- 2.Qxd5#
- 1...Sc5
- 2.Qxc3#
- 1...Kxd6!
- 1...Sd5
- 1.Qc5+?
- 1...Sd5
- 2.Sc4#
- 2.Qxd5#
- 1...Sxc5!
- 1...Sd5
- 1.Qc4?
- threat
- 2.Rxe6#
- 2.Qxe6#
- 1...Sxc4
- 2.Sxc4#
- 1...Sxg5
- 2.Qxc3#
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Rg6
- 2.Sf7#
- 1...Sd5
- 2.Qxd5#
- 1...Sc5
- 2.Qxc3#
- 2.Qd4#
- 1...Sc7
- 2.Qxc3#
- 2.Qd4#
- 1...Sd8
- 2.Qxc3#
- 2.Qd4#
- 1...Sf8
- 2.Qxc3#
- 2.Qd4#
- 1...Kxd6!
- threat
- 1.Qb5+?
- 1...Kxd6
- 2.Bxf4#
- 1...Sd5
- 2.Sc4#
- 2.Qxd5#
- 1...Sc5!
- 1...Kxd6
- 1.Qb6?
- 1...Rxg5
- 2.Sf7#
- 1...Sxc2
- 2.Sc4#
- 1...Sxg5
- 2.Qd4#
- 1...exd6
- 2.Bf6#
- 1...Sd4
- 2.Qxd4#
- 1...Rg6
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rg8
- 2.Sf7#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Sc5!
- 1...Rxg5
- 1.Qb8?
- threat
- 2.Sc4#
- 2.Sf7#
- 1...exd6
- 2.Bf6#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 1...Sc4
- 2.Sxc4#
- 2.Sf7#
- 1...Sc7!
- threat
- 1.Sc1?
- Keys
- 1.Qa4!
- 1...Kxd6
- 2.Bxf4#
- 1...Rxg5
- 2.Sf7#
- 1...Sxc2
- 2.Sc4#
- 1...Sxg5
- 2.Qd4#
- 1...exd6
- 2.Bf6#
- 1...Sd4
- 2.Qxd4#
- 1...Rg6
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rg8
- 2.Sf7#
- 1...Sd1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sg2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 1...Sc5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...Kxd6
- 1.Qa4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD,XB(G)::S(H)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD,XP(B)::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(e);N_GUARD::QAB1(E),XS(e)
- P(f);N_GUARD,XS(H)::B(G)
- Tries
- Try
- S(C);
- Threat
- S(C)
- Vars
- S(e);N_GUARD::QAB(E),XP(a)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- S(C)
- Vars
- S(e);N_GUARD::QAB(E),XP(a)
- Refutation
- S(e);
- Try
- B(G);CHECK,XP(c)
- Refutation
- K(d);S_FLIGHT,XB(G)
- Try
- B(G);
- Vars
- S(b);N_GUARD,XP(B)::S(H)
- P(f);N_GUARD,XS(H)::B(G)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(e);N_GUARD::QAB1(E),XS(e)
- Refutation
- R(g);CHECK
- Try
- Q(E);CHECK,XP(a)
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB1(E),XS(e)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT,XS(H)
- Try
- Q(E);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(E),XP(a)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT,XS(H)
- Try
- Q(E);CHECK
- Refutation
- S(e);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(b);XQ(E)::S(H),XS(b)
- S(e);N_GUARD::QAB1(E),XS(e)
- R(g);N_GUARD::S(H)
- S(b);N_GUARD::QAR1(E),XS(b)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT,XS(H)
- Try
- Q(E);CHECK
- Vars
- K(d);P_SPINS(e),S_FLIGHT,XS(H)::B(G),XP(c)
- Refutation
- S(e);P_SPINS(e)
- Try
- Q(E);
- Vars
- R(g);N_GUARD,XB(G)::S(H)
- S(b);N_GUARD,XP(B)::S(H)
- S(e);N_GUARD,XB(G)::QAB1(E)
- P(f);N_GUARD,XS(H)::B(G)
- S(e);N_GUARD::QAB1(E),XS(e)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(e);N_GUARD::QAB1(E)
- Refutation
- S(e);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- P(f);N_GUARD,P_SPINP(f),XS(H)::B(G)
- Refutation
- S(e);
- Try
- Actual
- Q(E);
- Vars
- K(d);P_SPINS(e),S_FLIGHT,XS(H)::B(G),XP(c)
- R(g);N_GUARD,XB(G)::S(H)
- S(b);N_GUARD,XP(B)::S(H)
- S(e);N_GUARD,XB(G)::QAB1(E)
- P(f);N_GUARD,SBLOCK,XS(H)::B(G)
- S(e);N_GUARD::QAB1(E),XS(e)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(e);N_GUARD::QAB1(E)
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