MESON Chess Problem Database
Problem Display
PID: 274069 (2b3BN/1p6/1p1P1p2/4pkPR/p4P1P/2pP2nK/1Q4N1/n7 w - - 0 1)
Baumann, Klaus
Die Schwalbe, 2023
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Bh7#
- 1...Sf1
- 2.g6#
- 1...Sh1
- 2.g6#
- 1...Se2
- 2.g6#
- 1...exf4
- 2.Qb5#
- 1...e4
- 2.Qb5#
- 1...Be6
- Tries
- 1.Qxc3?
- threat
- 2.Qxc8#
- 1...exf4
- 2.Qxf6#
- 1...fxg5
- 2.Qxe5#
- 1...Be6
- 2.Bh7#
- 1...Bd7!
- threat
- 1.Qa2?
- threat
- 2.Bh7#
- 1...exf4
- 2.Qd5#
- 1...fxg5
- 2.Qf7#
- 1...Sb3!
- threat
- 1.Qf2?
- threat
- 2.Se3#
- 1...exf4
- 2.Qxf4#
- 1...fxg5
- 2.fxg5#
- 1...Sf1
- 2.g6#
- 1...Sc2!
- threat
- 1.Qxc3?
- Keys
- 1.Qe2!
- threat
- 2.Qg4#
- 1...Sxe2
- 2.g6#
- 1...exf4
- 2.Bh7#
- 1...fxg5
- 2.Qxe5#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- B(j);SBLOCK::B(J)
- S(c);N_GUARD::R(H)+P(G)
- P(e);OGATEB,XP(E)::QAR(A)
- P(e);OGATEB::QAR(A)
- Tries
- Try
- Q(A);XP(b)
- Threat
- QAB(A),XB(j)
- Vars
- P(e);OGATE,XP(E)::QAR1(A),XP(h)
- P(h);N_GUARD,P_SPINP(h),XP(G)::QAR1(A),XP(e)
- B(j);SBLOCK::B(J)
- Refutation
- B(j);
- Try
- Q(A);
- Threat
- B(J)
- Vars
- P(e);OGATEB,XP(E)::QAR2(A)
- P(h);OGATEB,P_SPINP(h),XP(G)::QAR2(A)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- S(B)
- Vars
- P(e);OGATE,P_SPINP(e),XP(E)::QAR1(A),XP(e)
- P(h);OGATE,P_SPINP(h),XP(G)::QAR(A)+P(E),XP(h)
- S(c);N_GUARD::R(H)+P(G)
- Refutation
- S(a);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(c);N_GUARD,XQ(A)::R(H)+P(G)
- P(e);XP(E)::B(J)
- P(h);N_GUARD,P_SPINP(h),XP(G)::QAR1(A),XP(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).