MESON Chess Problem Database
Problem Display
PID: 244909 (3B1nb1/2N1p1r1/3k2qR/1B6/1K6/8/4Q3/8 w - - 0 1)
Giese, Ernst
Die Schwalbe, 1929
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Bd5
- 2.Se8#
- 1...Bf7
- 2.Qxe7#
- 1...Bd5
- Tries
- 1.Rxg6+?
- 1...Rxg6
- 2.Qxe7#
- 1...Be6
- 2.Qh2#
- 1...Se6
- 2.Qh2#
- 1...e6
- 2.Qh2#
- 1...Sxg6!
- 1...Rxg6
- 1.Qd1+?
- 1...Bd5
- 2.Qxd5#
- 1...Ke5!
- 1...Bd5
- 1.Qd3+?
- 1...Bd5
- 2.Qxd5#
- 1...Ke5!
- 1...Bd5
- 1.Qd2+?
- 1...Bd5
- 2.Qxd5#
- 1...Ke5!
- 1...Bd5
- 1.Rxg6+?
- Keys
- 1.Qe4!
- threat
- 2.Se8#
- 1...Be6
- 2.Qf4#
- 1...Bf7
- 2.Qxe7#
- 1...Se6
- 2.Qd5#
- 1...e5
- 2.Qc6#
- 1...e6
- 2.Qd4#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(f);SBLOCK::S(E)
- B(f);S_CUTR(d)::QAB1(A),XP(c)
- Tries
- Try
- R(D);CHECK,XQ(b)
- Vars
- R(d);XR(D)::QAB1(A),XP(c)
- B(f);P_SPINB(f)::QAB(A)
- S(e);P_SPINS(e)::QAB(A)
- P(c);P_SPINP(c)::QAB(A)
- Refutation
- S(e);XR(D)
- Try
- Q(A);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAR1(A),XB(f)
- Refutation
- K(a);N_SPINQ(b),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAR1(A),XB(f)
- Refutation
- K(a);N_SPINQ(b),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAR1(A),XB(f)
- Refutation
- K(a);N_SPINQ(b),S_FLIGHT
- Try
- Actual
- Q(A);
- Threat
- S(E)
- Vars
- B(f);N_SPINQ(b),S_CUTP(c)::QAB(A)
- B(f);S_CUTR(d)::QAB1(A),XP(c)
- S(e);N_SPINQ(b),S_CUTB(f)::QAR1(A)
- P(c);SBLOCK::QAR1(A)
- P(c);N_SPINQ(b),S_CUTB(f)::QAR2(A)
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).