MESON Chess Problem Database
Problem Display
PID: 42869 (3Q2K1/r1n3p1/p1R1Nb1p/R6B/2N1k3/2P3B1/1p1Pp3/1q6 w - - 0 1)
Zappas, Byron
1st Prize, Arguelles JT, 1983
#2
10 + 10
| 3748 | FIDE Album (1983-1985) | 1992 |
| 3166 | Finnish Solving Championship | 2003 |
| 422 | Suomen Tehtavaniekat | 2003 |
| 4901 | Best Problems | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.d3#
- 1...Qa1
- 2.d3#
- 1...Qc1
- 2.d3#
- 1...Qe1
- 2.d3#
- 1...Qf1
- 2.d3#
- 1...Qg1
- 2.d3#
- 1...Qh1
- 2.d3#
- 1...Bd4
- 2.Qxd4#
- 1...Bh4
- 2.Re5#
- 2.Qd4#
- 1...Be5
- 2.Rxe5#
- 1...Bg5
- 2.Re5#
- 2.Qd4#
- 1...Be7
- 2.Re5#
- 2.Qd4#
- 1...Sd5
- 2.Qxd5#
- 1...Sxe6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Qa2
- Tries
- 1.Se3?
- threat
- 2.Sc5#
- 1...Sxe6
- 2.Qd5#
- 1...Bd4
- 2.Qxd4#
- 1...Be7
- 2.Re5#
- 2.Rc4#
- 2.Qd4#
- 1...Qa2!
- threat
- 1.Sd4?
- threat
- 2.Bg6#
- 1...Kd3
- 2.Bg6#
- 1...Bxd4
- 2.Qxd4#
- 1...g6
- 2.Bxg6#
- 1...Qf1!
- threat
- 1.Sf4?
- threat
- 2.Sd6#
- 1...Be5
- 2.Rxe5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Qa2
- 2.Qd3#
- 2.d3#
- 1...Qd3
- 2.Qxd3#
- 1...Be7
- 2.Re5#
- 2.Qd4#
- 1...Se8
- 2.Qd5#
- 1...Bxc3!
- threat
- 1.Sg5+?
- 1...Bxg5
- 2.Re5#
- 2.Qd4#
- 1...hxg5!
- 1...Bxg5
- 1.Bxe2?
- threat
- 2.Sd6#
- 1...Be5
- 2.Rxe5#
- 1...Qd3
- 2.Qxd3#
- 1...Be7
- 2.Re5#
- 2.Qd4#
- 1...Se8
- 2.Qd5#
- 1...Sb5!
- threat
- 1.Bg4?
- threat
- 2.Sc5#
- 1...Sxe6
- 2.Qd5#
- 1...Bd4
- 2.Qxd4#
- 1...Qg1
- 2.d3#
- 1...Be7
- 2.Re5#
- 2.Qd4#
- 1...Bxd8!
- threat
- 1.Qd3+?
- 1...Kxd3
- 2.Bg6#
- 1...Qxd3!
- 1...Kxd3
- 1.Qd7?
- threat
- 2.Sc5#
- 1...Sxe6
- 2.Qd5#
- 1...Bd4
- 2.Qxd4#
- 1...Qg1
- 2.d3#
- 1...Be7
- 2.Re5#
- 2.Qd4#
- 1...Ra8+!
- threat
- 1.Se3?
- Keys
- 1.Se5!
- threat
- 2.Bg6#
- 1...Kf5
- 2.Bg6#
- 1...Bxe5
- 2.Rxe5#
- 1...Qf1
- 2.Qd3#
- 1...g6
- 2.Bxg6#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::P(A)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(f);N_GUARD::R1(E),XB(f)
- S(i);N_GUARD::QAB1(I),XS(i)
- S(i);N_GUARD,XS(H)::QAB1(I)
- S(i);N_GUARD::QAB1(I)
- Tries
- Try
- S(D);
- Threat
- S(H)
- Vars
- S(i);N_GUARD,XS(H)::QAB1(I)
- B(f);N_GUARD::QAR1(I),XB(f)
- Refutation
- Q(a);P_PINS(H)
- Try
- S(H);
- Threat
- B(F)
- Vars
- K(d);S_FLIGHT::B(F)
- B(f);OGATE,XS(H)::QAR1(I),XB(f)
- P(j);::B(F),XP(j)
- Refutation
- Q(a);
- Try
- S(H);
- Threat
- S(D)
- Vars
- B(f);N_GUARD::R1(E),XB(f)
- S(i);N_GUARD::QAB1(I)
- S(i);N_GUARD::QAB1(I),XS(i)
- Q(a);N_GUARD::QAB1(I),XQ(a)
- Refutation
- B(f);XP(B)
- Try
- S(H);CHECK
- Refutation
- P(g);XS(H)
- Try
- B(F);XP(c)
- Threat
- S(D)
- Vars
- B(f);N_GUARD::R1(E),XB(f)
- Q(a);N_GUARD::QAB1(I),XQ(a)
- S(i);N_GUARD::QAB1(I)
- Refutation
- S(i);
- Try
- B(F);
- Threat
- S(H)
- Vars
- S(i);N_GUARD,XS(H)::QAB1(I)
- B(f);N_GUARD::QAR1(I),XB(f)
- Q(a);N_GUARD::P(A)
- Refutation
- B(f);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(d);S_FLIGHT,XQ(I)::B(F)
- Refutation
- Q(a);XQ(I)
- Try
- Q(I);
- Threat
- S(H)
- Vars
- S(i);N_GUARD,XS(H)::QAB1(I)
- B(f);N_GUARD::QAR1(I),XB(f)
- Q(a);N_GUARD::P(A)
- Refutation
- R(h);CHECK
- Try
- Actual
- S(D);
- Threat
- B(F)
- Vars
- K(d);S_FLIGHT::B(F)
- B(f);OGATE,XS(D)::R1(E),XB(f)
- Q(a);N_GUARD::QAB1(I)
- P(j);::B(F),XP(j)
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