MESON Chess Problem Database
Problem Display
PID: 197417 (2r5/1b2PN2/qR6/2Rp4/5k1N/2PppBpP/1B4p1/4Q1K1 w - - 0 1)
Biscan, Dragutin
diagrammes, 1974
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Rf6#
- 1...Qb5
- 2.Rf6#
- 1...Qa1
- 2.Rf6#
- 1...Qa2
- 2.Rf6#
- 1...Qa3
- 2.Rf6#
- 1...Qa4
- 2.Rf6#
- 1...Qa5
- 2.Rf6#
- 1...Qa7
- 2.Rf6#
- 1...Qa8
- 2.Rf6#
- 1...e2
- 2.Qd2#
- 1...d4
- 2.Rf5#
- 1...Qc4
- Tries
- 1.Kxg2?
- threat
- 2.Qxg3#
- 1...e2
- 2.Qd2#
- 1...Rg8!
- threat
- 1.Sxg2+?
- 1...Kxf3
- 2.Sg5#
- 2.Qxe3#
- 1...Kf5!
- 1...Kxf3
- 1.Sg6+?
- 1...Kxf3
- 2.Sg5#
- 1...Kf5!
- 1...Kxf3
- 1.Bc1?
- threat
- 2.Bxe3#
- 2.Qxe3#
- 1...d4
- 2.Rf5#
- 1...d2!
- threat
- 1.Bxg2?
- threat
- 2.Qf1#
- 1...e2
- 2.Qd2#
- 1...Qa1
- 2.Rf6#
- 1...d4
- 2.Sg6#
- 2.Rf5#
- 1...d2!
- threat
- 1.Rb4+?
- 1...d4
- 2.Rf5#
- 1...Qc4!
- 1...d4
- 1.Re6?
- threat
- 2.Qxe3#
- 1...Qa1
- 2.Rf6#
- 1...e2
- 2.Qd2#
- 1...d4
- 2.Rf5#
- 1...Qxe6!
- threat
- 1.Rg6?
- threat
- 2.Rg4#
- 2.Qxg3#
- 1...e2
- 2.Qd2#
- 1...Qa1
- 2.Rg4#
- 2.Rf6#
- 1...Qe6
- 2.Qxg3#
- 1...Rg8
- 2.Qxg3#
- 1...Qxg6!
- threat
- 1.e8Q?
- threat
- 2.Q1xe3#
- 2.Q8xe3#
- 2.Qe5#
- 1...Qa1
- 2.Rf6#
- 2.Qxe3#
- 2.Qe5#
- 1...e2
- 2.Qd2#
- 2.Qe5#
- 1...d4
- 2.Rf5#
- 2.Qe5#
- 1...Rxe8!
- threat
- 1.e8R?
- threat
- 2.Qxe3#
- 1...Qa1
- 2.Rf6#
- 1...e2
- 2.Qd2#
- 1...d4
- 2.Rf5#
- 1...Rxe8!
- threat
- 1.Kxg2?
- Keys
- 1.c4!
- threat
- 2.Be5#
- 1...e2
- 2.Qd2#
- 1...Qa1
- 2.Rf6#
- 1...d4
- 2.Rf5#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD::R(I)
- Q(g);N_GUARD,P_PINQ(A)::R(I)
- P(c);OGATEB::QAB(A)
- P(f);OGATE::R1(H)
- Tries
- Try
- K(B);P-FLIGHT,XP(a)
- Threat
- QAB1(A),XP(d)
- Vars
- P(c);OGATEB::QAB(A)
- Refutation
- R(i);
- Try
- S(G);CHECK,XP(a)
- Refutation
- K(e);P-FLIGHT,P_SPINP(f)
- Try
- S(G);CHECK
- Vars
- K(e);P-FLIGHT,XB(E)::S(K)
- Refutation
- K(e);P-FLIGHT,P_SPINP(f)
- Try
- B(C);P_PINP(c)
- Threat
- DUALS(2)
- Vars
- P(f);OGATE::R1(H)
- Refutation
- P(b);N_SPINP(c)
- Try
- B(E);XP(a)
- Threat
- QAR(A)
- Vars
- P(c);OGATEB::QAB(A)
- Q(g);N_GUARD,P_PINQ(A)::R(I)
- Refutation
- P(b);
- Try
- R(I);CHECK
- Vars
- P(f);OGATE,P_SPINP(f)::R1(H)
- Refutation
- Q(g);P_SPINQ(g)
- Try
- R(I);
- Threat
- QAB1(A),XP(c)
- Vars
- Q(g);N_GUARD,P_PINQ(A)::R(I)
- P(c);OGATEB::QAB(A)
- P(f);OGATE::R1(H)
- Refutation
- Q(g);XR(I)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB::QAB(A)
- Q(g);::QAB1(A),XP(d)
- R(i);::QAB1(A),XP(d)
- Refutation
- Q(g);XR(I)
- Try
- P(J);
- Threat
- DUALS(3)
- Refutation
- R(i);XQ(J)
- Try
- P(J);
- Threat
- QAB1(A),XP(c)
- Vars
- Q(g);N_GUARD,P_PINQ(A)::R(I)
- P(c);OGATEB::QAB(A)
- P(f);OGATE::R1(H)
- Refutation
- R(i);XR(J)
- Try
- Actual
- P(D);
- Threat
- B(C)
- Vars
- P(c);OGATEB::QAB(A)
- Q(g);N_GUARD,P_PINQ(A)::R(I)
- P(f);OGATE::R1(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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