MESON Chess Problem Database
Problem Display
PID: 6476 (1B6/1rr4B/4pp2/p1N1k1b1/5NRp/1R1Q2P1/8/1nK5 w - - 0 1)
Schiffmann, Israel Abraham
Tijdschrift vd NSB, 1929
#2
9 + 9
| 1397 | Faszinierendes Schachproblem | 1963 |
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Bxc7#
- 1...Rb4
- 2.Bxc7#
- 1...Rb5
- 2.Bxc7#
- 1...Bxf4+
- 2.gxf4#
- 1...Sd2
- 2.Sg6#
- 1...Sc3
- 2.Sd7#
- 1...Rxb3
- Tries
- 1.Kxb1?
- threat
- 2.Sg6#
- 2.Sd7#
- 1...Rxb8
- 2.Sg6#
- 1...Bxf4
- 2.Sd7#
- 2.gxf4#
- 1...f5
- 2.Sd7#
- 1...Rxb3+!
- threat
- 1.Kd1?
- threat
- 2.Sg6#
- 2.Sd7#
- 1...Rxb8
- 2.Sg6#
- 1...Bxf4
- 2.Sd7#
- 2.gxf4#
- 1...f5
- 2.Sd7#
- 1...Sc3+!
- threat
- 1.Kb2?
- threat
- 2.Sg6#
- 2.Sd7#
- 1...Rxb8
- 2.Sg6#
- 1...Bxf4
- 2.Sd7#
- 2.gxf4#
- 1...f5
- 2.Sd7#
- 1...Rxb3+!
- threat
- 1.Rb2?
- threat
- 2.Re2#
- 1...Bxf4+
- 2.gxf4#
- 1...Rxb2
- 2.Bxc7#
- 1...Rb4
- 2.Bxc7#
- 1...Sd2
- 2.Sg6#
- 1...Sc3
- 2.Sd7#
- 1...f5!
- threat
- 1.Rc3?
- threat
- 2.Sd7#
- 1...Bxf4+
- 2.gxf4#
- 1...Rxb8!
- threat
- 1.Rb4?
- threat
- 2.Re4#
- 2.Qd4#
- 1...Bxf4+
- 2.gxf4#
- 1...Rxb4
- 2.Bxc7#
- 1...f5
- 2.Qd4#
- 1...Sd2
- 2.Sg6#
- 2.Qd4#
- 1...Sc3
- 2.Sd7#
- 2.Qd4#
- 1...axb4!
- threat
- 1.Rb6?
- threat
- 2.Rxe6#
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Bxf4+
- 2.gxf4#
- 1...f5
- 2.Rxe6#
- 1...Sd2
- 2.Sg6#
- 2.Rxe6#
- 2.Qc3#
- 2.Qd6#
- 1...Sc3
- 2.Sd7#
- 2.Rxe6#
- 2.Qxc3#
- 2.Qd6#
- 1...Rxb6!
- threat
- 1.Rxb7?
- threat
- 2.Bxc7#
- 1...Bxf4+
- 2.gxf4#
- 1...f5!
- threat
- 1.Qd7?
- threat
- 2.Re3#
- 1...Bxf4+
- 2.gxf4#
- 1...Rxb3
- 2.Bxc7#
- 1...Rb4
- 2.Bxc7#
- 1...Sd2
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...f5!
- threat
- 1.Kxb1?
- Keys
- 1.Qd8!
- threat
- 2.Re3#
- 1...Bxf4+
- 2.gxf4#
- 1...Rxb3
- 2.Bxc7#
- 1...Rb4
- 2.Bxc7#
- 1...Sd2
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- threat
- 1.Qd8!
This anticipates 10897(1969)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(h);N_GUARD,XR(B)::B(I),XR(i)
- R(h);N_GUARD::B(I),XR(i)
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- S(a);N_PINS(E),P_PINS(G)::S(E)
- S(a);::S(G)
- Tries
- Try
- K(A);N_SPINS(E),P-FLIGHT,P_SPINR(B),XS(a)
- Threat
- DUALS(2)
- Vars
- R(h);N_SPINR(i),XB(I)::S(E)
- P(g);::S(G)
- Refutation
- R(h);CHECK,XR(B)
- Try
- K(A);N_SPINS(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(h);N_SPINR(i),XB(I)::S(E)
- P(g);::S(G)
- Refutation
- S(a);CHECK
- Try
- K(A);N_SPINS(E),P_SPINR(B),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(h);N_SPINR(i),XB(I)::S(E)
- P(g);::S(G)
- Refutation
- R(h);CHECK,XR(B)
- Try
- R(B);
- Threat
- R(B)
- Vars
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- R(h);N_GUARD,XR(B)::B(I),XR(i)
- R(h);N_GUARD::B(I),XR(i)
- S(a);N_PINS(E),P_PINS(G)::S(E)
- S(a);::S(G)
- Refutation
- P(g);
- Try
- R(B);
- Threat
- S(G)
- Vars
- B(e);CHECK,OGATE,XS(E)::P(D),XB(e)
- Refutation
- R(h);N_SPINR(i),XB(I)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- R(h);N_GUARD,XR(B)::B(I),XR(i)
- P(g);::QAB1(C)
- Refutation
- P(c);XR(B)
- Try
- R(B);
- Threat
- DUALS(4)
- Vars
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- P(g);::R1(B),XP(f)
- Refutation
- R(h);XR(B)
- Try
- R(B);XR(h)
- Threat
- B(I),XR(i)
- Vars
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- Refutation
- P(g);
- Try
- Q(C);
- Threat
- R(B)
- Vars
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- R(h);N_GUARD,XR(B)::B(I),XR(i)
- R(h);N_GUARD::B(I),XR(i)
- S(a);N_PINS(E),P_PINS(G)::S(E)
- S(a);::S(G)
- Refutation
- P(g);
- Try
- Actual
- Q(C);
- Threat
- R(B)
- Vars
- B(e);CHECK,OGATE,P_PINS(G),XS(E)::P(D),XB(e)
- R(h);N_GUARD,XR(B)::B(I),XR(i)
- R(h);N_GUARD::B(I),XR(i)
- S(a);N_PINS(E),P_PINS(G)::S(E)
- S(a);::S(G)
Developed and maintained by Brian Stephenson.
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