MESON Chess Problem Database
Problem Display
PID: 48550 (n1N2B2/1pN2RK1/2k5/3RpB2/4p3/4brp1/8/4r2Q w - - 0 1)
Healey, Percy E
2nd Prize, Hampstead Express, 1909
#2
8 + 9
| 16 | Chess Amateur (The) | 1910 |
| 56 | The Problemist | 1929 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Qh6#
- 1...Bc1
- 2.Rc5#
- 1...Bg1
- 2.Qh6#
- 1...Bd2
- 2.Rc5#
- 1...Bf2
- 2.Qh6#
- 1...Bd4
- 2.Qh6#
- 1...Bf4
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Bg5
- 2.Rc5#
- 1...Bb6
- 2.Qh6#
- 1...Bh6+
- 2.Qxh6#
- 1...Ba7
- 2.Qh6#
- 1...Sb6
- 2.Sa7#
- 1...Rf4
- Tries
- 1.Sa7+?
- 1...Bxa7
- 2.Qh6#
- 1...Kb6!
- 1...Bxa7
- 1.Ra5?
- threat
- 2.Bxe4#
- 1...Bh6+
- 2.Qxh6#
- 1...Rxf5
- 2.Qxe4#
- 1...Sxc7
- 2.Bd7#
- 1...Bc1
- 2.Rc5#
- 1...Rf4
- 2.Qh6#
- 1...Bg1
- 2.Qh6#
- 1...Bd2
- 2.Rc5#
- 1...Bf2
- 2.Qh6#
- 1...Bd4
- 2.Qh6#
- 1...Bf4
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Bg5
- 2.Rc5#
- 1...Bb6
- 2.Qh6#
- 1...Ba7
- 2.Qh6#
- 1...Sb6
- 2.Sa7#
- 1...Rd1!
- threat
- 1.Rb5?
- threat
- 2.Bxe4#
- 1...Bh6+
- 2.Qxh6#
- 1...Rxf5
- 2.Qxe4#
- 1...Sxc7
- 2.Bd7#
- 1...Bc1
- 2.Sa7#
- 2.Rc5#
- 1...Rf4
- 2.Qh6#
- 1...Bg1
- 2.Qh6#
- 1...Bd2
- 2.Sa7#
- 2.Rc5#
- 1...Bf2
- 2.Qh6#
- 1...Bd4
- 2.Qh6#
- 1...Bf4
- 2.Sa7#
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Bg5
- 2.Sa7#
- 2.Rc5#
- 1...Bb6
- 2.Qh6#
- 1...Ba7
- 2.Sxa7#
- 2.Qh6#
- 1...Sb6
- 2.Sa7#
- 1...Rd1!
- threat
- 1.Rxe5?
- threat
- 2.Bxe4#
- 2.Re6#
- 1...Bh6+
- 2.Qxh6#
- 1...Rxf5
- 2.Re6#
- 2.Qxe4#
- 1...Sxc7
- 2.Bd7#
- 1...b5
- 2.Bxe4#
- 1...b6
- 2.Bxe4#
- 1...Bc1
- 2.Rc5#
- 2.Re6#
- 1...Rf4
- 2.Re6#
- 2.Qh6#
- 1...Bg1
- 2.Re6#
- 2.Qh6#
- 1...Bd2
- 2.Rc5#
- 2.Re6#
- 1...Bf2
- 2.Re6#
- 2.Qh6#
- 1...Bd4
- 2.Qh6#
- 1...Bf4
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Bg5
- 2.Rc5#
- 2.Re6#
- 1...Bb6
- 2.Re6#
- 2.Qh6#
- 1...Ba7
- 2.Re6#
- 2.Qh6#
- 1...Sb6
- 2.Sa7#
- 2.Re6#
- 1...Rd1!
- threat
- 1.Sa7+?
- Keys
- 1.Rd4!
- threat
- 2.Bxe4#
- 1...Bh6+
- 2.Qxh6#
- 1...Rxf5
- 2.Qxe4#
- 1...Bxd4
- 2.Qh6#
- 1...Sxc7
- 2.Bd7#
- 1...Bc1
- 2.Rc4#
- 1...Rf4
- 2.Qh6#
- 1...Bg1
- 2.Qh6#
- 1...Bd2
- 2.Rc4#
- 1...Bf2
- 2.Qh6#
- 1...Bf4
- 2.Rc4#
- 1...Bg5
- 2.Rc4#
- 1...Sb6
- 2.Sa7#
- threat
- 1.Rd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(c);S_CUTB(b)::QAR(A)
- B(b);N_GUARD::R1(B)
- B(b);N_GUARD::QAR(A)
- B(b);N_GUARD::R1(B),XB(b)
- B(b);CHECK,N_GUARD::QAR(A),XB(b)
- S(i);SBLOCK,S_CUTB(b)::S(G)
- Tries
- Try
- S(G);CHECK
- Vars
- B(b);XS(G)::QAR(A)
- Refutation
- K(g);P-FLIGHT
- Try
- R(B);
- Threat
- B(C),XP(e)
- Vars
- B(b);CHECK,N_GUARD::QAR(A),XB(b)
- R(c);OGATE,P_SPINP(e),XB(C)::QAB(A),XP(e)
- S(i);SBLOCK,XS(D)::B(C)
- B(b);N_GUARD::R1(B)
- R(c);P_SPINP(e),S_CUTB(b)::QAR(A)
- B(b);N_GUARD::QAR(A)
- B(b);N_GUARD::R1(B),XB(b)
- S(i);SBLOCK,S_CUTB(b)::S(G)
- Refutation
- R(a);
- Try
- R(B);
- Threat
- B(C),XP(e)
- Vars
- B(b);CHECK,N_GUARD::QAR(A),XB(b)
- R(c);OGATE,P_SPINP(e),XB(C)::QAB(A),XP(e)
- S(i);SBLOCK,XS(D)::B(C)
- R(c);P_SPINP(e),S_CUTB(b)::QAR(A)
- B(b);N_GUARD::QAR(A)
- B(b);N_GUARD::R1(B),XB(b)
- S(i);S_CUTB(b)::S(G)
- Refutation
- R(a);
- Try
- R(B);XP(f)
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::QAR(A),XB(b)
- S(i);SBLOCK,XS(D)::B(C)
- P(h);::B(C),XP(e)
- B(b);N_GUARD,P_PINR(B)::QAR(A)
- B(b);N_GUARD::R1(B)
- B(b);N_GUARD::R1(B),XB(b)
- Refutation
- R(a);
- Try
- Actual
- R(B);
- Threat
- B(C),XP(e)
- Vars
- B(b);CHECK,N_GUARD::QAR(A),XB(b)
- R(c);OGATE,P_SPINP(e),XB(C)::QAB(A),XP(e)
- B(b);N_GUARD,XR(B)::QAR(A)
- S(i);SBLOCK,XS(D)::B(C)
- B(b);N_GUARD::R(B)
- R(c);P_SPINP(e),S_CUTB(b)::QAR(A)
- B(b);N_GUARD::QAR(A)
- S(i);SBLOCK::S(G)
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).