MESON Chess Problem Database
Problem Display
PID: 175207 (6Nq/1p4bp/p2Q4/4R3/r4kP1/pBPP1p1K/1N4n1/4n3 w - - 0 1)
Burkell, HR
Philadelphia Times, 1902
#2
9 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qxd4#
- 1...Ra5
- 2.Qd4#
- 1...Bxe5
- 2.Qh6#
- 1...Sxd3
- 2.Sxd3#
- 1...Se3
- 2.Rf5#
- 1...Rd4
- Tries
- 1.Sd1?
- threat
- 2.Rf5#
- 1...Bxe5
- 2.Qh6#
- 1...Sxd3!
- threat
- 1.Sc4?
- threat
- 2.Rf5#
- 2.Qd4#
- 1...Bxe5
- 2.Qh6#
- 1...Sxd3
- 2.Qd4#
- 1...f2
- 2.Rf5#
- 1...Sc2
- 2.Rf5#
- 1...Rxc4!
- threat
- 1.Rxe1+?
- 1...Be5
- 2.Qh6#
- 1...Kg5!
- 1...Be5
- 1.Re2+?
- 1...Be5
- 2.Qh6#
- 1...Kg5!
- 1...Be5
- 1.Ra5+?
- 1...Be5
- 2.Qh6#
- 1...Ke3!
- 1...Be5
- 1.Rb5+?
- 1...Be5
- 2.Qh6#
- 1...Ke3!
- 1...Be5
- 1.Rc5+?
- 1...Be5
- 2.Qh6#
- 1...Ke3!
- 1...Be5
- 1.Rd5+?
- 1...Be5
- 2.Qh6#
- 1...Ke3!
- 1...Be5
- 1.Rh5+?
- 1...Be5
- 2.Qh6#
- 1...Ke3!
- 1...Be5
- 1.Re7+?
- 1...Be5
- 2.Qh6#
- 1...Kg5!
- 1...Be5
- 1.Re8+?
- 1...Be5
- 2.Qh6#
- 1...Kg5!
- 1...Be5
- 1.Qc5?
- threat
- 2.Rf5#
- 1...Sxd3
- 2.Sxd3#
- 1...Rd4
- 2.Qxd4#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- 1...Bxe5!
- threat
- 1.Qe7?
- threat
- 2.Rf5#
- 2.Qg5#
- 1...Re4
- 2.Rxe4#
- 2.Qg5#
- 1...f2
- 2.Rf5#
- 1...Ra5
- 2.Re4#
- 2.Qg5#
- 1...Bf6
- 2.Rf5#
- 1...Bh6
- 2.Rf5#
- 1...Se3
- 2.Qg5#
- 1...Sh4
- 2.Qg5#
- 1...h6
- 2.Rf5#
- 1...Bxe5!
- threat
- 1.Sd1?
- Keys
- 1.Qb6!
- threat
- 2.Rf5#
- 1...Kxe5
- 2.Qc7#
- 1...Bxe5
- 2.Qh6#
- 1...Sxd3
- 2.Sxd3#
- 1...Rd4
- 2.Qxd4#
- 1...Ra5
- 2.Qd4#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::QAR2(H),XR(e)
- R(e);N_GUARD::QAR2(H)
- B(i);N_GUARD,P_SPINB(i),SBLOCK,XR(G)::QAB(H)
- S(a);XP(D)::S(A),XS(a)
- S(b);SBLOCK::QAB(H)+R(G),DCHECK
- Tries
- Try
- S(A);
- Threat
- QAB(H)+R(G),DCHECK
- Vars
- B(i);N_GUARD,P_SPINB(i),SBLOCK,XR(G)::QAB(H)
- Refutation
- S(a);XP(D)
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- B(i);N_GUARD,P_SPINB(i),XR(G)::QAB(H)
- S(a);XP(D)::QAR2(H)
- P(d);::QAB(H)+R(G),DCHECK
- S(a);::QAB(H)+R(G),DCHECK
- Refutation
- R(e);XS(A)
- Try
- R(G);CHECK,XS(a)
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB(H)
- Refutation
- K(f);S_FLIGHT
- Try
- Q(H);
- Threat
- R1(G)
- Vars
- S(a);XP(D)::S(A),XS(a)
- R(e);N_GUARD::QAR2(H),XR(e)
- S(b);N_GUARD::QAB1(H),XS(b)
- S(b);N_GUARD::QAB1(H)
- Refutation
- B(i);XR(G)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(d);::R1(G)
- B(i);::R1(G)
- S(b);::QAB1(H)
- P(j);::R1(G)
- Refutation
- B(i);XR(G)
- Try
- Actual
- Q(H);
- Threat
- R1(G)
- Vars
- K(f);OGATEB,S_FLIGHT,XR(G)::QAB(H)
- B(i);N_GUARD,SBLOCK,XR(G)::QAB(H)
- S(a);XP(D)::S(A),XS(a)
- R(e);N_GUARD::QAR2(H),XR(e)
- R(e);N_GUARD::QAR2(H)
- S(b);N_GUARD::QAB1(H),XS(b)
- S(b);N_GUARD::QAB1(H)
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