MESON Chess Problem Database
Problem Display
PID: 223321 (5N2/1nQ5/2prP3/2R3B1/P2k4/8/B4N2/5K2 w - - 0 1)
Phelps, Francis Bradley
2nd Prize, Buffalo Sunday Times, 1886
#2
9 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rc4#
- 1...Rxe6
- 2.Sxe6#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sxc5
- 2.Qg7#
- 1...Sd8
- 2.Qxd6#
- 1...Rd5
- Tries
- 1.Ke1?
- 1...Rxe6+
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6+
- 1.Kg1?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Ke2?
- threat
- 2.Be3#
- 1...Rxe6+
- 2.Sxe6#
- 1...Sxc5
- 2.Bf6#
- 2.Qg7#
- 1...Kxc5!
- threat
- 1.Kg2?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Bb3?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Bc1?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Bd2?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qxd6#
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Bf4?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Bh6?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5!
- 1...Rxe6
- 1.Rc1?
- threat
- 2.Qg7#
- 1...Rxe6
- 2.Sxe6#
- 1...Rd5
- 2.Rc4#
- 2.Qf4#
- 1...Rd7
- 2.Qf4#
- 1...Ke5!
- threat
- 1.Rc2?
- threat
- 2.Qg7#
- 1...Rxe6
- 2.Sxe6#
- 1...Rd5
- 2.Rc4#
- 2.Qf4#
- 1...Rd7
- 2.Qf4#
- 1...Ke5!
- threat
- 1.Qb8?
- 1...Rxe6
- 2.Sxe6#
- 1...Sxc5
- 2.Qb2#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sa5
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 2.Qb4#
- 1...Kxc5!
- 1...Rxe6
- 1.Ke1?
- Keys
- 1.a5!
- 1...Kxc5
- 2.Qb6#
- 1...Rxe6
- 2.Sxe6#
- 1...Sxa5
- 2.Qxd6#
- 1...Sxc5
- 2.Qg7#
- 1...Rd5
- 2.Rc4#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sd8
- 2.Qxd6#
- 1...Kxc5
- 1.a5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);SBLOCK::R1(E)
- R(c);XP(G)::S(I),XR(c)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(c);CHECK,XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- K(A);P-FLIGHT
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- K(A);S_FLIGHT
- Threat
- B(F)
- Vars
- R(c);CHECK,XP(G)::S(I),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- K(A);S_FLIGHT
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- B(B);
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- B(F);
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- B(F);
- Vars
- R(c);XP(G)::S(I),XR(c)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- B(F);
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- B(F);
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT,XR(E)
- Try
- R(E);
- Threat
- QAB(H)
- Vars
- R(c);XP(G)::S(I),XR(c)
- R(c);OGATE::QAR2(H)
- Refutation
- K(a);P_SPINR(c),S_FLIGHT
- Try
- R(E);
- Threat
- QAB(H)
- Vars
- R(c);XP(G)::S(I),XR(c)
- R(c);OGATE::QAR2(H)
- Refutation
- K(a);P_SPINR(c),S_FLIGHT
- Try
- Q(H);
- Vars
- R(c);XP(G)::S(I),XR(c)
- S(d);OGATE,SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
- Refutation
- K(a);S_FLIGHT,XR(E)
- Try
- Actual
- P(D);
- Vars
- K(a);OGATEB,P_SPINP(b),S_FLIGHT,XR(E)::QAB1(H)
- R(c);XP(G)::S(I),XR(c)
- S(d);N_GUARD,XP(D)::QAR2(H),XR(c)
- S(d);SBLOCK,XR(E)::QAB(H)
- R(c);SBLOCK::R1(E)
- R(c);OGATE::QAB1(H)
- S(d);N_GUARD::QAR2(H),XR(c)
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