MESON Chess Problem Database
Problem Display
PID: 189557 (7n/2p1K3/2B1N1pN/1P2k1p1/1p1p2P1/1ppP4/1Q2b3/2R3n1 w - - 0 1)
Hamilton, Charles Dingee Pennock
Western Daily Mercury, 1911
#2
9 + 11
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Qh2#
- 1...Bf1
- 2.Qh2#
- 1...Bxd3
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...cxb2
- 2.Rc5#
- 1...c2
- 2.Qxd4#
- 1...Bd1
- Tries
- 1.Ra1?
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...Bd1
- 2.Qh2#
- 1...Bf1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...c2
- 2.Qxd4#
- 1...cxb2!
- 1...Bxd3
- 1.Rb1?
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...Bd1
- 2.Qh2#
- 1...Bf1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...c2
- 2.Qxd4#
- 1...cxb2!
- 1...Bxd3
- 1.Rd1?
- 1...Bxd1
- 2.Qh2#
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...Bf1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...c2
- 2.Qxd4#
- 1...cxb2!
- 1...Bxd1
- 1.Re1?
- 1...Sf3
- 2.Rxe2#
- 2.Qxe2#
- 1...Sh3
- 2.Rxe2#
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...c2
- 2.Qxd4#
- 1...cxb2!
- 1...Sf3
- 1.Rf1?
- 1...Bxf1
- 2.Qh2#
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Sxg4#
- 2.Qh2#
- 1...Bd1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...c2
- 2.Qxd4#
- 1...cxb2!
- 1...Bxf1
- 1.Rxg1?
- threat
- 2.Qxe2#
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...Bd1
- 2.Qh2#
- 1...Bf1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...c2
- 2.Qxd4#
- 1...cxb2!
- threat
- 1.Rxc3?
- threat
- 2.Rc5#
- 1...dxc3
- 2.d4#
- 1...Bf3
- 2.Qh2#
- 1...bxc3!
- threat
- 1.Qxc3?
- threat
- 2.Qxd4#
- 2.Qc5#
- 1...dxc3
- 2.d4#
- 1...Bf3
- 2.Qxd4#
- 1...Sf3
- 2.Qc5#
- 1...bxc3!
- threat
- 1.b6?
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...cxb2
- 2.Rc5#
- 1...Bd1
- 2.Qh2#
- 1...Bf1
- 2.Qh2#
- 1...Bf3
- 2.Qh2#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- 1...c2
- 2.Qxd4#
- 1...cxb6!
- 1...Bxd3
- 1.Ra1?
- Keys
- 1.Qd2!
- threat
- 2.Qxg5#
- 1...Bxd3
- 2.Qh2#
- 1...Bxg4
- 2.Qh2#
- 1...cxd2
- 2.Rc5#
- 1...Sf3
- 2.Qxe2#
- 1...Sh3
- 2.Qxe2#
- 1...Sf7
- 2.Sxf7#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- B(b);OGATE::QAB(B)
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,XQ(B)::R(A)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Tries
- Try
- R(A);
- Vars
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- B(b);OGATE::QAB(B)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(d);XQ(B)
- Try
- R(A);
- Vars
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- B(b);OGATE::QAB(B)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(d);XQ(B)
- Try
- R(A);
- Vars
- B(b);OGATE,XR(A)::QAB(B)
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- B(b);OGATE::QAB(B)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(d);XQ(B)
- Try
- R(A);P_PINB(b)
- Vars
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(d);XQ(B)
- Try
- R(A);
- Vars
- B(b);OGATE,XR(A)::QAB(B)
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE::QAB(B)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(d);XQ(B)
- Try
- R(A);XS(a)
- Threat
- QAR(B),XB(b)
- Vars
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- B(b);OGATE::QAB(B)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(d);XQ(B)
- Try
- R(A);XP(d)
- Threat
- R(A)
- Vars
- P(f);OGATE,P_SPINP(f),XR(A)::P(C)
- B(b);OGATE::QAB(B)
- Refutation
- P(e);XR(A)
- Try
- Q(B);P_PINP(f),XP(d)
- Threat
- DUALS(2)
- Vars
- P(f);N_SPINP(f),OGATE,XQ(B)::P(C)
- B(b);::QAB1(B),XP(f)
- S(a);::QAR2(B)
- Refutation
- P(e);N_SPINP(f),XQ(B)
- Try
- P(E);
- Vars
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- P(d);OGATE,XQ(B)::R(A)
- B(b);OGATE::QAB(B)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
- P(d);OGATE,P_SPINP(f)::QAB1(B),XP(f)
- Refutation
- P(j);XP(E)
- Try
- Actual
- Q(B);
- Threat
- QAR2(B),XP(h)
- Vars
- B(b);OGATE,XP(C)::QAB(B)
- B(b);OGATE,XP(D)::QAB(B)
- P(d);OGATE,XQ(B)::R(A)
- S(a);N_GUARD::QAR(B),XB(b)
- S(k);N_GUARD::S(H),XS(k)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).