MESON Chess Problem Database
Problem Display
PID: 59682 (8/2NQ1p2/pKp2P2/P4B2/1Bkp2rq/1R6/P3Nn2/rn4bb w - - 0 1)
Zappas, Byron
3rd Prize, Nederlandse Bond van Probleemvrienden, 1966
#2
10 + 12
| 3772 | FIDE Album (1965-1967) | 1976 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Qxc6#
- 2.Qxf7#
- 1...Re4
- 2.Qxc6#
- 1...Be4
- 2.Qxd4#
- 1...Sd1
- 2.Bd3#
- 1...Sd3
- 2.Bxd3#
- 1...Sh3
- 2.Bd3#
- 1...Se4
- 2.Qxf7#
- 1...Rg2
- Tries
- 1.Ba3?
- threat
- 2.Rb4#
- 1...Re4
- 2.Qxc6#
- 1...Be4
- 2.Qxd4#
- 1...Sd3
- 2.Bxd3#
- 1...Se4
- 2.Qxf7#
- 1...c5
- 2.Qa4#
- 1...Sxa3!
- threat
- 1.Bc5?
- threat
- 2.Rb4#
- 1...Be4
- 2.Qxd4#
- 1...Sd3
- 2.Bxd3#
- 1...Se4
- 2.Qxf7#
- 1...Re4!
- threat
- 1.Bd6?
- threat
- 2.Rb4#
- 1...Re4
- 2.Qxc6#
- 1...Sd3
- 2.Bxd3#
- 1...Se4
- 2.Qxf7#
- 1...c5
- 2.Qa4#
- 1...Be4!
- threat
- 1.Be7?
- threat
- 2.Rb4#
- 1...Re4
- 2.Qxc6#
- 1...Be4
- 2.Qxd4#
- 1...Sd3
- 2.Bxd3#
- 1...c5
- 2.Qa4#
- 1...Se4!
- threat
- 1.Be4?
- threat
- 2.Qxc6#
- 2.Qxd4#
- 2.Qxf7#
- 1...Rxa2
- 2.Qxf7#
- 1...Rxe4
- 2.Qxc6#
- 1...Bxe4
- 2.Qxd4#
- 1...Sxe4
- 2.Qxf7#
- 1...Sc3
- 2.Qxc6#
- 2.Qxd4#
- 1...Qg5
- 2.Qxd4#
- 1...Qh5
- 2.Qxd4#
- 1...Qh7
- 2.Qxc6#
- 2.Qxd4#
- 1...Rg5
- 2.Qxd4#
- 1...Rg7
- 2.Qxc6#
- 2.Qxd4#
- 1...Sd1
- 2.Bd3#
- 2.Qxc6#
- 2.Qxf7#
- 1...Sd3
- 2.Bxd3#
- 2.Qxf7#
- 1...Sh3
- 2.Bd3#
- 2.Qxc6#
- 2.Qxf7#
- 1...d3
- 2.Qxc6#
- 2.Qd4#
- 2.Qxf7#
- 1...c5
- 2.Qd5#
- 2.Qxf7#
- 1...Qxf6!
- threat
- 1.Be6+?
- 1...Bd5
- 2.Qxc6#
- 1...fxe6!
- 1...Bd5
- 1.Qe7?
- threat
- 2.Qc5#
- 1...Sd3
- 2.Bxd3#
- 1...Se4
- 2.Qxf7#
- 1...c5
- 2.Qxc5#
- 1...Rxa2!
- threat
- 1.Ba3?
- Keys
- 1.Bf8!
- threat
- 2.Rb4#
- 1...Re4
- 2.Qxc6#
- 1...Be4
- 2.Qxd4#
- 1...Sd3
- 2.Bxd3#
- 1...Se4
- 2.Qxf7#
- 1...c5
- 2.Qa4#
- threat
- 1.Bf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(h);S_CUTB(d)::QAR2(J),XP(k)
- B(d);S_CUTR(h)::QAR1(J),XP(g)
- S(e);N_GUARD::B(F)
- S(e);N_GUARD::B(F),XS(e)
- S(e);S_CUTB(d)::QAB(J),XP(l)
- Tries
- Try
- B(D);
- Threat
- R1(C)
- Vars
- R(h);S_CUTB(d)::QAR2(J),XP(k)
- B(d);S_CUTR(h)::QAR1(J),XP(g)
- S(e);N_GUARD::B(F),XS(e)
- S(e);S_CUTB(d)::QAB(J),XP(l)
- P(k);OGATE::QAR2(J)
- Refutation
- S(b);XB(D)
- Try
- B(D);
- Threat
- R1(C)
- Vars
- B(d);S_CUTR(h)::QAR1(J),XP(g)
- S(e);N_GUARD::B(F),XS(e)
- S(e);S_CUTB(d)::QAB(J),XP(l)
- Refutation
- R(h);
- Try
- B(D);
- Threat
- R1(C)
- Vars
- R(h);S_CUTB(d)::QAR2(J),XP(k)
- S(e);N_GUARD::B(F),XS(e)
- S(e);S_CUTB(d)::QAB(J),XP(l)
- P(k);OGATE::QAR2(J)
- Refutation
- B(d);
- Try
- B(D);
- Threat
- R1(C)
- Vars
- R(h);S_CUTB(d)::QAR2(J),XP(k)
- B(d);S_CUTR(h)::QAR1(J),XP(g)
- S(e);N_GUARD::B(F),XS(e)
- P(k);OGATE::QAR2(J)
- Refutation
- S(e);
- Try
- B(F);
- Threat
- DUALS(3)
- Vars
- R(a);XP(A)::QAB(J),XP(l)
- R(h);XB(F)::QAR2(J),XP(k)
- B(d);XB(F)::QAR1(J),XP(g)
- S(e);XB(F)::QAB(J),XP(l)
- Q(i);::QAR1(J),XP(g)
- R(h);::QAR1(J),XP(g)
- Refutation
- Q(i);XP(H)
- Try
- B(F);CHECK
- Vars
- B(d);P_SPINB(d)::QAR2(J),XP(k)
- Refutation
- P(l);XB(F)
- Try
- Q(J);
- Threat
- QAR1(J)
- Vars
- S(e);N_GUARD::B(F),XS(e)
- S(e);S_CUTB(d)::QAB(J),XP(l)
- P(k);::QAR1(J),XP(k)
- Refutation
- R(a);XP(A)
- Try
- Actual
- B(D);
- Threat
- R1(C)
- Vars
- R(h);S_CUTB(d)::QAR2(J),XP(k)
- B(d);S_CUTR(h)::QAR1(J),XP(g)
- S(e);N_GUARD::B(F),XS(e)
- S(e);S_CUTB(d)::QAB(J),XP(l)
- P(k);OGATE::QAR2(J)
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