MESON Chess Problem Database
Problem Display
PID: 107959 (4B3/1p2pN2/1P2k3/KprpppP1/1B1b3P/1N5Q/8/8 w - - 0 1)
Davis, Luther
Checkmate, 1904
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sd8#
- 1...Rc2
- 2.Sd8#
- 1...Rc3
- 2.Sd8#
- 1...Rc4
- 2.Sd8#
- 1...Rc6
- 2.Sd8#
- 1...Rc7
- 2.Sd8#
- 1...Ba1
- 2.Sxc5#
- 1...Bb2
- 2.Sxc5#
- 1...Bc3
- 2.Sxc5#
- 1...e4
- 2.Sxd4#
- 1...Rc1
- Tries
- 1.Bxc5?
- threat
- 2.Sd8#
- 1...Bxc5
- 2.Sxc5#
- 1...e4
- 2.Sxd4#
- 1...Bc3+!
- threat
- 1.Qh2?
- 1...f4
- 2.Qh3#
- 1...Rc1
- 2.Sd8#
- 1...Rc2
- 2.Sd8#
- 1...Rc3
- 2.Sd8#
- 1...Rc4
- 2.Sd8#
- 1...Rc6
- 2.Sd8#
- 1...Rc7
- 2.Sd8#
- 1...Ba1
- 2.Sxc5#
- 1...Bg1
- 2.Qxe5#
- 1...Bb2
- 2.Sxc5#
- 1...Bf2
- 2.Qxe5#
- 1...Bc3
- 2.Sxc5#
- 1...Be3
- 2.Qxe5#
- 1...e4
- 2.Sxd4#
- 2.Sd8#
- 1...Rc8!
- 1...f4
- 1.Qe3?
- threat
- 2.Sxd4#
- 1...Rc4
- 2.Sd8#
- 1...Ba1
- 2.Sxc5#
- 1...Bb2
- 2.Sxc5#
- 1...Bc3
- 2.Sxc5#
- 1...Bxe3!
- threat
- 1.Qg3?
- 1...f4
- 2.Qh3#
- 2.Qg4#
- 1...Rc1
- 2.Sd8#
- 1...Rc2
- 2.Sd8#
- 1...Rc3
- 2.Sd8#
- 1...Rc4
- 2.Sd8#
- 1...Rc6
- 2.Sd8#
- 1...Rc7
- 2.Sd8#
- 1...Ba1
- 2.Sxc5#
- 1...Bg1
- 2.Qxe5#
- 1...Bb2
- 2.Sxc5#
- 1...Bf2
- 2.Qxe5#
- 1...Bc3
- 2.Sxc5#
- 1...Be3
- 2.Qxe5#
- 1...e4
- 2.Sxd4#
- 2.Sd8#
- 1...Rc8!
- 1...f4
- 1.Bxc5?
- Keys
- 1.Qc3!
- 1...Rxc3
- 2.Sd8#
- 1...Bxc3
- 2.Sxc5#
- 1...f4
- 2.Qh3#
- 1...Rc8
- 2.Qxc8#
- 1...Rc4
- 2.Sd8#
- 1...Rc6
- 2.Sd8#
- 1...Rc7
- 2.Sd8#
- 1...Bg1
- 2.Qxe5#
- 1...Bf2
- 2.Qxe5#
- 1...Be3
- 2.Qxe5#
- 1...e4
- 2.Sxd4#
- 1...Rxc3
- 1.Qc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(c);::S(H)
- B(a);N_GUARD::S(A),XR(c)
- B(a);N_GUARD,P_PINB(C)::S(A),XR(c)
- P(e);N_GUARD::S(A),XB(a)
- Tries
- Try
- B(C);XR(c)
- Threat
- S(H)
- Vars
- B(a);XB(C)::S(A),XB(a)
- P(e);N_GUARD::S(A),XB(a)
- Refutation
- B(a);CHECK
- Try
- Q(B);N_PINP(f)
- Vars
- P(f);OGATEB::QAB(B)
- R(c);::S(H)
- B(a);N_GUARD::S(A),XR(c)
- B(a);N_GUARD::QAR1(B),XP(e)
- B(a);N_GUARD,P_PINB(C)::S(A),XR(c)
- Refutation
- R(c);
- Try
- Q(B);N_PINP(f),P_PINP(e)
- Threat
- S(A),XB(a)
- Vars
- R(c);::S(H)
- B(a);N_GUARD::S(A),XR(c)
- B(a);N_GUARD,P_PINB(C)::S(A),XR(c)
- Refutation
- B(a);N_SPINP(e),XQ(B)
- Try
- Q(B);N_PINP(f)
- Vars
- R(c);::S(H)
- B(a);N_GUARD::S(A),XR(c)
- B(a);N_GUARD::QAR1(B),XP(e)
- B(a);N_GUARD,P_PINB(C)::S(A),XR(c)
- Refutation
- R(c);
- Try
- Actual
- Q(B);N_PINP(f)
- Vars
- R(c);XQ(B)::S(H)
- B(a);N_GUARD,P_PINB(C),XQ(B)::S(A),XR(c)
- P(f);OGATEB::QAB(B)
- R(c);OGATE::QAB(B),XR(c)
- R(c);::S(H)
- B(a);OGATE::QAR1(B),XP(e)
- P(e);N_GUARD::S(A),XB(a)
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