MESON Chess Problem Database
Problem Display
PID: 45870 (8/3Qpr1p/6BK/2PNk1Bp/2Pp4/q4r2/4n3/4N3 w - - 0 1)
Ring, Ulrich
2nd Prize, Probleemblad, 1961
#2
8 + 9
| 3749 | FIDE Album (1959-1961) | 1966 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Qxe7#
- 1...Rf5
- 2.Qxe7#
- 1...Rf8
- 2.Qxe7#
- 1...e6
- 2.Qd6#
- 1...Rf4
- Tries
- 1.Sxf3+?
- 1...Rxf3
- 2.Qxe7#
- 1...Qxf3!
- 1...Rxf3
- 1.Sb4?
- threat
- 2.Sc6#
- 2.Qd5#
- 1...Qxb4
- 2.Qd5#
- 1...hxg6
- 2.Qd5#
- 1...R3f5
- 2.Qd5#
- 1...R7f5
- 2.Qd5#
- 2.Qxe7#
- 1...Qa4
- 2.Qd5#
- 1...Qa6
- 2.Qd5#
- 1...R3f6
- 2.Qd5#
- 1...R7f6
- 2.Qd5#
- 1...Sc3
- 2.Sc6#
- 1...Sf4
- 2.Sc6#
- 1...e6
- 2.Sc6#
- 2.Qd6#
- 1...Qa8!
- threat
- 1.Sf4?
- threat
- 2.Qe6#
- 2.Qd5#
- 2.Qc7#
- 1...Qxc5
- 2.Sxf3#
- 2.Qe6#
- 1...R3xf4
- 2.Qd5#
- 1...R7xf4
- 2.Qd5#
- 2.Qxe7#
- 1...hxg6
- 2.Qe6#
- 2.Qd5#
- 1...Rf5
- 2.Qxf5#
- 2.Qe6#
- 2.Qd5#
- 2.Qxe7#
- 1...Qa5
- 2.Sxf3#
- 2.Qe6#
- 2.Qd5#
- 1...Qa6
- 2.Sxf3#
- 2.Qd5#
- 1...Qa7
- 2.Sxf3#
- 2.Qe6#
- 2.Qd5#
- 1...Qa8
- 2.Qe6#
- 2.Qc7#
- 1...Rf6
- 2.Qd5#
- 1...Sc3
- 2.Sxf3#
- 2.Qe6#
- 2.Qc7#
- 1...d3
- 2.Sxf3#
- 2.Qd5#
- 1...e6
- 2.Qxe6#
- 2.Qd6#
- 1...Sxf4!
- threat
- 1.Sf6?
- threat
- 2.Qd5#
- 1...Qxc5
- 2.Sxf3#
- 1...Sc3
- 2.Sxf3#
- 1...Sf4
- 2.Qf5#
- 1...e6
- 2.Qd6#
- 1...Qa8!
- threat
- 1.Sc7?
- threat
- 2.Qe6#
- 2.Qd5#
- 1...Qxc5
- 2.Qe6#
- 1...Qa8
- 2.Qe6#
- 1...Qa6
- 2.Qd5#
- 1...R3f6
- 2.Qd5#
- 1...R7f6
- 2.Qd5#
- 1...Sc3
- 2.Qe6#
- 1...d3
- 2.Qd5#
- 1...e6
- 2.Qxe6#
- 2.Qd6#
- 1...Sf4!
- threat
- 1.Sxe7?
- threat
- 2.Sc6#
- 2.Qd5#
- 2.Qd6#
- 1...Rxe7
- 2.Qd5#
- 2.Qd6#
- 2.Qxe7#
- 1...hxg6
- 2.Qd5#
- 1...R3f5
- 2.Qd5#
- 1...R7f5
- 2.Qd5#
- 1...Qa8
- 2.Qd6#
- 1...Qa4
- 2.Qd5#
- 2.Qd6#
- 1...Qa6
- 2.Qd5#
- 1...R3f6
- 2.Qd5#
- 1...R7f6
- 2.Qd5#
- 1...Sc3
- 2.Sc6#
- 2.Qd6#
- 1...Sf4
- 2.Sc6#
- 2.Qd6#
- 1...Qxc5!
- threat
- 1.Sxf3+?
- Keys
- 1.Se3!
- threat
- 2.Qd5#
- 1...Qxc5
- 2.Sd3#
- 1...Qa8
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sf4
- 2.Sxf3#
- 1...e6
- 2.Qd6#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- R(h);N_GUARD::QAR2(H),XP(g)
- P(g);N_GUARD::QAB1(H)
- Tries
- Try
- S(A);CHECK,XR(c)
- Vars
- R(h);XS(A)::QAR2(H),XP(g)
- Refutation
- Q(b);XS(A)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(D)::QAR1(H)
- P(i);XB(F)::QAR1(H)
- R(c);::QAR1(H)
- Q(b);::QAR1(H)
- Q(b);P_PINB(F)::QAR1(H)
- R(c);P_PINB(F)::QAR1(H)
- R(h);P_PINB(F)::QAR1(H)
- S(a);::S(D)
- Refutation
- Q(b);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- R(c);XS(D)::QAR1(H)
- R(h);P_PINB(F)::QAR1(H)
- Refutation
- S(a);XS(D)
- Try
- S(D);
- Threat
- QAR1(H)
- Vars
- Q(b);N_GUARD,XP(C)::S(A),XR(c)
- S(a);S_CUTQ(b)::S(A),XR(c)
- S(a);S_CUTR(c)::QAR1(H)
- P(g);N_GUARD::QAB1(H)
- Refutation
- Q(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(C)::QAR1(H)
- Q(b);::QAR1(H)
- Q(b);P_PINB(F)::QAR1(H)
- R(c);P_PINB(F)::QAR1(H)
- R(h);P_PINB(F)::QAR1(H)
- S(a);::QAR1(H)
- P(d);::QAR1(H)
- Refutation
- S(a);
- Try
- S(D);XP(g)
- Threat
- DUALS(3)
- Vars
- P(i);XB(F)::QAR1(H)
- R(c);::QAR1(H)
- R(h);::QAR1(H)
- Q(b);::QAB1(H)
- Q(b);P_PINB(F)::QAR1(H)
- R(c);P_PINB(F)::QAR1(H)
- R(h);P_PINB(F)::QAR1(H)
- Refutation
- Q(b);XP(C)
- Try
- Actual
- S(D);
- Threat
- QAR1(H)
- Vars
- Q(b);N_GUARD,XP(C)::S(A)
- Q(b);N_GUARD::S(A)
- S(a);S_CUTQ(b)::S(A)
- S(a);S_CUTR(h)::S(A),XR(c)
- P(g);N_GUARD::QAB1(H)
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