MESON Chess Problem Database
Problem Display
PID: 87628 (6B1/N2p4/2prrP2/2p3K1/Rnk3NR/2ppBP2/2P1Q3/q7 w - - 0 1)
Macleod, Norman Alasdair
American Chess Problemist, 1951
#2
11 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd5+
- 2.Se5#
- 1...Rd5+
- Tries
- 1.Bg1?
- threat
- 2.Se3#
- 1...Rd5+
- 2.Se5#
- 1...Kd5
- 2.Qe4#
- 1...Qxg1!
- threat
- 1.Bf2?
- threat
- 2.Se3#
- 1...Rd5+
- 2.Se5#
- 1...Kd5
- 2.Qe4#
- 1...Qg1!
- threat
- 1.Bxe6+?
- 1...Rd5+
- 2.Se5#
- 1...Rxe6
- 2.Qxd3#
- 1...dxe6!
- 1...Rd5+
- 1.Bg1?
- Keys
- 1.Bc1!
- threat
- 2.Se3#
- 1...Rd5+
- 2.Se5#
- 1...Kd4
- 2.Qxd3#
- 1...Kd5
- 2.Qe4#
- threat
- 1.Bc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(h);CHECK,N_SPINR(i),SBLOCK::R(G)+S(F),DCHECK
- Tries
- Try
- B(C);
- Threat
- R(G)+S(F),DCHECK
- Vars
- R(h);CHECK,N_SPINR(i),SBLOCK::R(G)+S(F),DCHECK
- K(e);N_SPINP(c),N_SPINS(d),S_FLIGHT::QAB1(B)
- Refutation
- Q(a);P_PINS(F),XB(C)
- Try
- B(C);
- Threat
- R(G)+S(F),DCHECK
- Vars
- R(h);CHECK,N_SPINR(i),SBLOCK::R(G)+S(F),DCHECK
- K(e);N_SPINP(c),N_SPINS(d),S_FLIGHT::QAB1(B)
- Refutation
- Q(a);P_PINS(F)
- Try
- B(K);CHECK,XR(i)
- Vars
- R(h);CHECK,P_SPINR(h)::R(G)+S(F),DCHECK
- R(h);XB(K)::QAB1(B),XP(c)
- Refutation
- P(j);XB(K)
- Try
- Actual
- B(C);
- Threat
- R(G)+S(F),DCHECK
- Vars
- R(h);CHECK,N_SPINR(i),SBLOCK::R(G)+S(F),DCHECK
- K(e);N_SPINP(c),N_SPINR(i),P-FLIGHT::QAR1(B),XP(c)
- K(e);N_SPINP(c),N_SPINS(d),S_FLIGHT::QAB1(B)
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).