MESON Chess Problem Database
Problem Display
PID: 122232 (3R3K/rkN4p/pBp2p2/P7/1R5r/5B2/2Q2bb1/2q5 w - - 0 1)
O'Keefe, John James
Sydney Daily Telegraph, 1932
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Qxc6#
- 1...Qd2
- 2.Qxc6#
- 1...Qa3
- 2.Qxc6#
- 1...Qe3
- 2.Qxc6#
- 1...Qf4
- 2.Qxc6#
- 1...Qg5
- 2.Qxc6#
- 1...Qh6
- 2.Qxc6#
- 1...Qa1
- 2.Qxc6#
- 1...Qb1
- 2.Qxc6#
- 1...Qd1
- 2.Qxc6#
- 1...Qe1
- 2.Qxc6#
- 1...Qf1
- 2.Qxc6#
- 1...Qg1
- 2.Qxc6#
- 1...Qh1
- 2.Qxc6#
- 1...Bf1
- 2.Bxc6#
- 1...Bh3
- 2.Bxc6#
- 1...Qb2
- Tries
- 1.Se8?
- threat
- 2.Sd6#
- 2.Bd4#
- 1...Rxb4
- 2.Sd6#
- 2.Qxh7#
- 1...Bxb6
- 2.Rxb6#
- 1...Qb2
- 2.Sd6#
- 2.Qxc6#
- 1...Qd2
- 2.Qxc6#
- 1...Qa3
- 2.Sd6#
- 2.Qxc6#
- 1...Qf4
- 2.Bd4#
- 2.Qxc6#
- 1...Qg5
- 2.Sd6#
- 2.Qxc6#
- 1...Qb1
- 2.Sd6#
- 2.Qxc6#
- 1...Qd1
- 2.Bd4#
- 2.Qxc6#
- 1...Qe1
- 2.Sd6#
- 2.Qxc6#
- 1...Qf1
- 2.Sd6#
- 2.Qxc6#
- 1...Rc4
- 2.Sd6#
- 2.Qxh7#
- 1...Rd4
- 2.Bxd4#
- 1...Rh5
- 2.Sd6#
- 2.Bc5#
- 1...Be1
- 2.Sd6#
- 1...Bg3
- 2.Bd4#
- 1...Bd4
- 2.Sd6#
- 2.Bxd4#
- 2.Bc5#
- 1...Bf1
- 2.Sd6#
- 2.Bxc6#
- 1...Bc5!
- threat
- 1.Se8?
- Keys
- 1.Se6!
- threat
- 2.Bd4#
- 1...Rxb4
- 2.Qxh7#
- 1...Bxb6
- 2.Rxb6#
- 1...Qb2
- 2.Qxc6#
- 1...Qd2
- 2.Qxc6#
- 1...Qa3
- 2.Qxc6#
- 1...Qg5
- 2.Qxc6#
- 1...Qb1
- 2.Qxc6#
- 1...Qe1
- 2.Qxc6#
- 1...Qf1
- 2.Qxc6#
- 1...Rc4
- 2.Qxh7#
- 1...Rd4
- 2.Sc5#
- 2.Bxd4#
- 1...Rh5
- 2.Bc5#
- 1...Be1
- 2.Sc5#
- 1...Bd4
- 2.Bxd4#
- 2.Bc5#
- 1...Bc5
- 2.Sxc5#
- 1...Bf1
- 2.Bxc6#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::QAB1(A),XP(f)
- B(c);N_GUARD::B(B),XP(f)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,P_SPINB(b),XB(E)::R1(C),XB(b)
- Q(a);N_GUARD::QAB1(A),XP(f)
- R(d);::R(C)+B(E),XR(d)
- B(b);::S(F)
- B(b);::R(C)+B(E)
- Refutation
- B(b);
- Try
- Actual
- S(F);
- Threat
- R(C)+B(E)
- Vars
- R(d);N_GUARD,XR(C)::QAR(A),XP(j)
- B(b);OGATE,P_SPINB(b),XB(E)::R1(C),XB(b)
- Q(a);N_GUARD::QAB1(A),XP(f)
- R(d);N_GUARD::QAR(A),XP(j)
- R(d);N_GUARD::R(C)+B(E)
- B(b);N_GUARD::S(F)
- B(b);N_GUARD::S(F),XB(b)
- B(c);N_GUARD::B(B),XP(f)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).