MESON Chess Problem Database
Problem Display
PID: 51350 (4KNkN/7R/8/n3P1Bp/2r4p/1r5p/B7/Q5R1 w - - 0 1)
Andrade, Barry Jack da Costa
British Chess Magazine, 1933
#2
9 + 7
| 98 | Manchester Guardian | 1958 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Bc1#
- 1...Rb2
- 2.Bd2#
- 1...Ra3
- 2.Be3#
- 1...Rbc3
- 2.Be3#
- 1...Rd3
- 2.Be3#
- 1...Re3
- 2.Bxe3#
- 1...Rbb4
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rb5
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rb6
- 2.Bf6#
- 1...Rb7
- 2.Be7#
- 1...Rb8+
- 2.Bd8#
- 1...Rc1
- 2.Bxc1#
- 1...Rc2
- 2.Bd2#
- 1...Rcc3
- 2.Be3#
- 1...Ra4
- 2.Bf4#
- 1...Rcb4
- 2.Bf4#
- 1...Rd4
- 2.Bf4#
- 1...Re4
- 2.Bf4#
- 1...Rf4
- 2.Bxf4#
- 1...Rc5
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rc6
- 2.Bf6#
- 1...Rc7
- 2.Be7#
- 1...Rc8+
- 2.Bd8#
- 1...Rb1
- Tries
- 1.Bxb3?
- threat
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Sxb3
- 2.Bf4#
- 1...h2!
- threat
- 1.Bxh4+?
- 1...Rg3
- 2.Rxg3#
- 1...Rg4!
- 1...Rg3
- 1.Qd4?
- threat
- 2.Be3#
- 2.Qd5#
- 1...Rb8+
- 2.Bd8#
- 1...Rc8+
- 2.Bd8#
- 1...Rxd4
- 2.Bf4#
- 1...Rb1
- 2.Bc1#
- 2.Qd5#
- 1...Rb2
- 2.Bd2#
- 2.Qd5#
- 1...Rd3
- 2.Be3#
- 1...Re3
- 2.Bxe3#
- 2.Qd5#
- 1...Rg3
- 2.Qd5#
- 1...Rb5
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rb6
- 2.Bf6#
- 1...Rb7
- 2.Be7#
- 1...Rc1
- 2.Bxc1#
- 2.Qd5#
- 1...Rc2
- 2.Bd2#
- 2.Qd5#
- 1...Rc5
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rc6
- 2.Bf6#
- 1...Rc7
- 2.Be7#
- 1...h2
- 2.Qd5#
- 1...Rf3!
- threat
- 1.Qd1?
- threat
- 2.Qd5#
- 1...Rb8+
- 2.Bd8#
- 1...Rc8+
- 2.Bd8#
- 1...Rd3
- 2.Be3#
- 1...Rb5
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rb6
- 2.Bf6#
- 1...Rb7
- 2.Be7#
- 1...Rd4
- 2.Bf4#
- 1...Rf4
- 2.Bxf4#
- 1...Rc5
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Bf4#
- 2.Bxh4#
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 1...Rc6
- 2.Bf6#
- 1...Rc7
- 2.Be7#
- 1...Rf3!
- threat
- 1.Qf1?
- threat
- 2.Qf7#
- 1...Rb8+
- 2.Bd8#
- 1...Rc8+
- 2.Bd8#
- 1...Rb7
- 2.Be7#
- 1...Rf4
- 2.Bxf4#
- 1...Rc7
- 2.Be7#
- 1...Rf3!
- threat
- 1.Bxb3?
- Keys
- 1.Qb1!
- threat
- 2.Qg6#
- 1...Rb8+
- 2.Bd8#
- 1...Rc8+
- 2.Bd8#
- 1...Rxb1
- 2.Bc1#
- 1...Rd3
- 2.Be3#
- 1...Rb6
- 2.Bf6#
- 1...Rb7
- 2.Be7#
- 1...Rc2
- 2.Bd2#
- 1...Re4
- 2.Bf4#
- 1...Rc6
- 2.Bf6#
- 1...Rc7
- 2.Be7#
- threat
- 1.Qb1!
This is a version of 251292
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(a);P_SPINR(c)::R(B)+B(E)
- R(a);P_PINP(D),P_SPINR(c)::R(B)+B(E),XR(a)
- R(a);CHECK,N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);N_GUARD,P_SPINR(a)::R(B)+B(E),XR(c)
- R(c);N_GUARD,P_SPINR(a)::R(B)+B(E)
- R(c);P_SPINR(a)::R(B)+B(E)
- R(c);P_PINP(D),P_SPINR(a)::R(B)+B(E)
- R(c);P_SPINR(a)::R(B)+B(E),XR(c)
- R(c);CHECK,N_GUARD,P_SPINR(a)::R(B)+B(E)
- Tries
- Try
- B(C);P_PINR(c),XR(a)
- Threat
- DUALS(9)
- Vars
- S(e);N_SPINR(c),XB(C)::R(B)+B(E)
- Refutation
- P(b);
- Try
- B(E);CHECK,XP(d)
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(c)::R(B),XR(a)
- Refutation
- R(c);P_SPINR(a)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);CHECK,P_SPINR(a)::R(B)+B(E)
- R(c);P_SPINR(a),XQ(A)::R(B)+B(E)
- R(a);P_SPINR(c)::R(B)+B(E)
- R(a);P_SPINR(c)::QAB(A)
- R(a);N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);P_SPINR(a)::R(B)+B(E)
- P(b);::QAB(A)
- Refutation
- R(a);P_SPINR(c)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(a);CHECK,N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);CHECK,N_GUARD,P_SPINR(a)::R(B)+B(E)
- R(a);P_SPINR(c)::R(B)+B(E)
- R(a);N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);P_SPINR(a)::R(B)+B(E)
- R(c);P_SPINR(a)::R(B)+B(E),XR(c)
- R(c);N_GUARD,P_SPINR(a)::R(B)+B(E)
- Refutation
- R(a);P_SPINR(c)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(a);CHECK,N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);CHECK,N_GUARD,P_SPINR(a)::R(B)+B(E)
- R(a);N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);P_SPINR(a)::R(B)+B(E),XR(c)
- R(c);N_GUARD,P_SPINR(a)::R(B)+B(E)
- Refutation
- R(a);P_SPINR(c)
- Try
- Actual
- Q(A);
- Threat
- QAR2(A)
- Vars
- R(a);CHECK,N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);CHECK,N_GUARD,P_SPINR(a)::R(B)+B(E)
- R(a);N_GUARD,P_SPINR(c),XQ(A)::R(B)+B(E)
- R(a);P_SPINR(c)::R(B)+B(E)
- R(a);N_GUARD,P_SPINR(c)::R(B)+B(E)
- R(c);N_GUARD,P_SPINR(a)::R(B)+B(E)
- R(c);P_PINP(D),P_SPINR(a)::R(B)+B(E)
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).