MESON Chess Problem Database
Problem Display
PID: 6406 (8/8/8/2P1pNKp/1p2kN1R/r2n2P1/2B2Rn1/Q7 w - - 0 1)
Schiffmann, Israel Abraham
3rd & Sp. Prize, Grantham Journal, 1929
#2
9 + 7
| 1397 | Faszinierendes Schachproblem | 1963 |
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Bxd3#
- 1...Ra2
- 2.Bxd3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Qa8#
- 1...Ra4
- 2.Bxd3#
- 1...Ra5
- 2.Bxd3#
- 1...Ra6
- 2.Bxd3#
- 1...Ra7
- 2.Bxd3#
- 1...Ra8
- 2.Bxd3#
- 2.Qxa8#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Sd6#
- 1...Sxf4
- 2.Qh1#
- 1...Sxh4
- 2.Qe1#
- 1...b3
- 2.Bxd3#
- 1...exf4
- 2.Qd4#
- 1...Rxa1
- Tries
- 1.Kf6?
- threat
- 2.Qxe5#
- 1...Rxa1
- 2.Bxd3#
- 1...exf4
- 2.Qd4#
- 2.Qe5#
- 1...Rc3
- 2.Qa8#
- 1...Ra6+!
- threat
- 1.Sxd3+?
- 1...Sf4
- 2.Qxe5#
- 2.Qh1#
- 1...Sxh4
- 2.Qxe5#
- 1...Kd5!
- 1...Sf4
- 1.Sd5+?
- 1...Sf4
- 2.Sf6#
- 2.Qh1#
- 1...Sxh4
- 2.Sf6#
- 1...Kxd5!
- 1...Sf4
- 1.Sxh5+?
- 1...Sf4
- 2.Sf6#
- 2.Qh1#
- 1...Sxh4
- 2.Sf6#
- 1...Kd5!
- 1...Sf4
- 1.Sg6+?
- 1...Sf4
- 2.Qxe5#
- 2.Qh1#
- 1...Sxh4
- 2.Qxe5#
- 1...Kd5!
- 1...Sf4
- 1.Rf1?
- 1...Rxa1
- 2.Bxd3#
- 1...Sxh4
- 2.Qe1#
- 1...exf4
- 2.Qd4#
- 1...Ra2
- 2.Bxd3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Qa8#
- 1...Ra4
- 2.Bxd3#
- 1...Ra5
- 2.Bxd3#
- 1...Ra6
- 2.Bxd3#
- 1...Ra7
- 2.Bxd3#
- 1...Ra8
- 2.Bxd3#
- 2.Qxa8#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Sd6#
- 1...b3
- 2.Bxd3#
- 1...Sxf4!
- 1...Rxa1
- 1.Re2+?
- 1...Se3
- 2.Rxe3#
- 2.Qh1#
- 1...Kf3!
- 1...Se3
- 1.Rxh5?
- 1...Rxa1
- 2.Bxd3#
- 1...exf4
- 2.Qd4#
- 1...Ra2
- 2.Bxd3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Qa8#
- 1...Ra4
- 2.Bxd3#
- 1...Ra5
- 2.Bxd3#
- 1...Ra6
- 2.Bxd3#
- 1...Ra7
- 2.Bxd3#
- 1...Ra8
- 2.Bxd3#
- 2.Qxa8#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Sd6#
- 1...Sh4
- 2.Qe1#
- 1...b3
- 2.Bxd3#
- 1...Sxf4!
- 1...Rxa1
- 1.Qc3?
- threat
- 2.Bxd3#
- 2.Qxb4#
- 2.Qc4#
- 1...Sxf4
- 2.Qc4#
- 1...bxc3
- 2.Bxd3#
- 1...exf4
- 2.Qd4#
- 1...Rb3
- 2.Bxd3#
- 2.Qc4#
- 1...Ra4
- 2.Bxd3#
- 2.Qxd3#
- 2.Qc4#
- 1...Se1
- 2.Qxe1#
- 2.Qxb4#
- 2.Qc4#
- 1...Se3
- 2.Sd6#
- 2.Bxd3#
- 1...b3
- 2.Bxd3#
- 2.Qb4#
- 2.Qxd3#
- 2.Qc4#
- 1...Rxc3!
- threat
- 1.Qd1?
- threat
- 2.Qf3#
- 1...Sxh4
- 2.Qe2#
- 2.Qe1#
- 1...Se1
- 2.Qe2#
- 2.Qxe1#
- 1...exf4!
- threat
- 1.Qe1+?
- 1...Se3
- 2.Qxe3#
- 1...Sxe1!
- 1...Se3
- 1.Qa2?
- threat
- 2.Sxg2#
- 2.Qc4#
- 2.Qd5#
- 1...Rxa2
- 2.Bxd3#
- 1...Sxf4
- 2.Qc4#
- 1...Sxh4
- 2.Qc4#
- 2.Qd5#
- 1...exf4
- 2.Qe6#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Sxg2#
- 2.Qd5#
- 2.Qa8#
- 1...Se1
- 2.Se2#
- 2.Sg2#
- 2.Sxd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sxh5#
- 2.Se6#
- 2.Sg6#
- 2.Qc4#
- 2.Qd5#
- 1...b3
- 2.Bxd3#
- 1...Se3!
- threat
- 1.Qxa3?
- threat
- 2.Bxd3#
- 2.Qxb4#
- 2.Qxd3#
- 2.Qa8#
- 1...Sxf4
- 2.Qxd3#
- 2.Qa8#
- 1...bxa3
- 2.Bxd3#
- 1...Se1
- 2.Qxb4#
- 2.Qa8#
- 1...Se3
- 2.Bxd3#
- 2.Qxd3#
- 1...b3
- 2.Bxd3#
- 2.Qb4#
- 2.Qa4#
- 2.Qa8#
- 1...exf4!
- threat
- 1.Kf6?
- Keys
- 1.Bb3!
- threat
- 2.Bd5#
- 1...Rxb3
- 2.Qa8#
- 1...Sgxf4
- 2.Qh1#
- 1...Sdxf4
- 2.Qb1#
- 1...exf4
- 2.Qd4#
- 1...Se3
- 2.Sd6#
- threat
- 1.Bb3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(b);N_GUARD,XQ(A)::B(B),XS(c)
- R(b);N_GUARD::B(B),XS(c)
- R(b);OGATE::QAB(A)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);SBLOCK::S(H)
- S(a);OGATEB,XS(E)::QAB(A)
- S(a);N_GUARD,XR(F)::QAR(A)
- P(d);S_CUTR(b)::B(B),XS(c)
- P(f);N_GUARD,P_SPINP(f),XS(E)::QAR1(A)
- Tries
- Try
- K(I);S_FLIGHT
- Threat
- QAR1(A),XP(f)
- Vars
- R(b);N_GUARD,XQ(A)::B(B),XS(c)
- R(b);OGATE::QAB(A)
- Refutation
- R(b);CHECK
- Try
- S(E);CHECK,XS(c)
- Vars
- S(a);XR(F)::QAR1(A),XP(f)
- Refutation
- K(e);S_FLIGHT
- Try
- S(E);CHECK
- Vars
- S(a);XR(F)::S(E)
- Refutation
- K(e);N_SPINS(c),S_FLIGHT,XS(E)
- Try
- S(E);CHECK,XP(g)
- Vars
- S(a);XR(F)::S(E)
- Refutation
- K(e);N_SPINS(c),S_FLIGHT
- Try
- S(E);CHECK
- Vars
- S(a);XR(F)::QAR1(A),XP(f)
- Refutation
- K(e);N_SPINS(c),S_FLIGHT
- Try
- R(C);
- Vars
- R(b);N_GUARD,XQ(A)::B(B),XS(c)
- S(a);N_GUARD,XR(F)::QAR(A)
- P(f);N_GUARD,P_SPINP(f),XS(E)::QAR1(A)
- R(b);N_GUARD::B(B),XS(c)
- R(b);OGATE::QAB(A)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);SBLOCK::S(H)
- P(d);S_CUTR(b)::B(B),XS(c)
- Refutation
- S(a);XS(E)
- Try
- R(C);CHECK
- Refutation
- K(e);N_SPINS(c),S_FLIGHT
- Try
- R(F);XP(g)
- Vars
- R(b);N_GUARD,XQ(A)::B(B),XS(c)
- P(f);N_GUARD,XS(E)::QAR1(A)
- R(b);N_GUARD::B(B),XS(c)
- R(b);OGATE::QAB(A)
- S(a);N_GUARD::QAR(A),XS(a)
- S(a);SBLOCK::S(H)
- S(a);N_GUARD::QAR(A)
- P(d);S_CUTR(b)::B(B),XS(c)
- Refutation
- S(a);XS(E)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(a);XS(E)::QAR2(A)
- P(d);XQ(A)::B(B),XS(c)
- P(f);N_GUARD,P_SPINP(f),XS(E)::QAR1(A)
- Refutation
- R(b);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A)
- Refutation
- P(f);P_SPINP(f),XS(E)
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(b);N_GUARD,XQ(A)::B(B),XS(c)
- S(a);XS(E)::QAR2(A)
- P(f);OGATEB,P_SPINP(f),XS(E)::QAR2(A)
- R(b);OGATE::QAB(A)
- P(d);S_CUTR(b)::B(B),XS(c)
- Refutation
- S(a);
- Try
- Q(A);XR(b)
- Threat
- DUALS(4)
- Vars
- P(d);XQ(A)::B(B),XS(c)
- Refutation
- P(f);P_SPINP(f),XS(E)
- Try
- Actual
- B(B);N_PINS(c)
- Threat
- B(B)
- Vars
- R(b);OGATE,XB(B)::QAB(A)
- S(a);OGATEB,P_SPINS(a),XS(E)::QAB(A)
- S(c);OGATEB,P_SPINS(c),XS(E)::QAB(A)
- P(f);N_GUARD,P_SPINP(f),XS(E)::QAR1(A)
- S(a);SBLOCK::S(H)
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