MESON Chess Problem Database
Problem Display
PID: 164720 (5q2/3pR1r1/3P2PQ/2BBN1N1/2PP1pP1/3Pk1P1/3R1r2/4Kn1b w - - 0 1)
Gross, Erwin
Die Schwalbe, 1969
#2
15 + 8
SOLUTION
- SOUND
- Sets
- 1...Re2+
- 2.Rxe2#
- 1...Rf3
- 2.Re2#
- 1...f3
- 2.Sgf7#
- 1...Re2+
- Tries
- 1.Sef7+?
- 1...Be4
- 2.Rxe4#
- 1...Qxe7!
- 1...Be4
- 1.Bxh1?
- threat
- 2.d5#
- 1...Re2+
- 2.Rxe2#
- 1...Qc8
- 2.Sef7#
- 1...fxg3!
- threat
- 1.Bg2?
- threat
- 2.d5#
- 1...Re2+
- 2.Rxe2#
- 1...Qc8
- 2.Sef7#
- 1...fxg3!
- threat
- 1.Bf7?
- threat
- 2.d5#
- 1...Re2+
- 2.Rxe2#
- 1...fxg3
- 2.Sgf3#
- 1...Qc8
- 2.Sef3#
- 1...Bd5!
- threat
- 1.Rxf2?
- threat
- 2.Re2#
- 1...fxg3
- 2.Sgf7#
- 1...Bf3
- 2.Rxf3#
- 1...f3
- 2.Sgf7#
- 1...Sxg3!
- threat
- 1.Sef7+?
- Keys
- 1.Bf3!
- threat
- 2.d5#
- 1...Re2+
- 2.Rxe2#
- 1...fxg3
- 2.Sgf7#
- 1...Qc8
- 2.Sef7#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(c);CHECK,N_GUARD::R1(B),XR(c)
- R(c);N_GUARD::R1(B)
- P(e);::QAB(N)+S(K)
- Tries
- Try
- S(J);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::R1(O),XB(b)
- Refutation
- Q(h);XR(O)
- Try
- B(I);XB(b)
- Threat
- B(H)+P(F)
- Vars
- R(c);CHECK,N_GUARD::R1(B),XR(c)
- Q(h);N_GUARD::R(O)+S(J)
- Refutation
- P(e);XP(D)
- Try
- B(I);
- Threat
- B(H)+P(F)
- Vars
- R(c);CHECK,N_GUARD::R1(B),XR(c)
- Q(h);N_GUARD::R(O)+S(J)
- Refutation
- P(e);XP(D)
- Try
- B(I);
- Threat
- B(H)+P(F)
- Vars
- R(c);CHECK,N_GUARD::R1(B),XR(c)
- P(e);XP(D)::QAB(N)+S(K)
- Q(h);N_GUARD::R(O)+S(J)
- Refutation
- B(b);
- Try
- R(B);XR(c)
- Threat
- R1(B)
- Vars
- P(e);XP(D)::QAB(N)+S(K)
- B(b);N_GUARD::R1(B),XB(b)
- P(e);::QAB(N)+S(K)
- Refutation
- S(a);XP(D)
- Try
- Actual
- B(I);
- Threat
- B(H)+P(F)
- Vars
- R(c);CHECK,N_GUARD::R1(B),XR(c)
- P(e);XP(D)::QAB(N)+S(K)
- Q(h);N_GUARD::R(O)+S(J)
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).