MESON Chess Problem Database
Problem Display
PID: 164389 (7r/1B3Qp1/N2kPp2/3p1pq1/bP6/6N1/2r1R2p/B3R2K w - - 0 1)
Pongrac, Georg
Schach, 2001
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sxf5#
- 1...Qd2
- 2.Sxf5#
- 1...Qe3
- 2.Sxf5#
- 1...Qh4
- 2.Sxf5#
- 1...Qh6
- 2.Sxf5#
- 1...Ra2
- 2.Qc7#
- 1...Rb2
- 2.Qc7#
- 1...Rd2
- 2.Qc7#
- 1...Rc5
- 2.bxc5#
- 1...Rc6
- 2.Qd7#
- 1...Rc7
- 2.Qxc7#
- 1...Rh3
- 2.Qf8#
- 1...Rh4
- 2.Qf8#
- 1...Rh5
- 2.Qf8#
- 1...Rh6
- 2.Qf8#
- 1...Rh7
- 2.Qf8#
- 1...Rf8
- 2.Qxf8#
- 1...Bb3
- 2.Qd7#
- 1...Bc6
- 2.Qc7#
- 1...Bd7
- 2.Qxd7#
- 1...Qc1
- Tries
- 1.Bc6?
- threat
- 2.Qc7#
- 2.Qd7#
- 1...Rxe2
- 2.Qd7#
- 1...Rxc6
- 2.Qd7#
- 1...Bxc6
- 2.Qc7#
- 1...Qe3
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Rd8
- 2.Qc7#
- 1...Kxc6!
- threat
- 1.Rd1?
- threat
- 2.Rxd5#
- 1...Qc1
- 2.Sxf5#
- 1...Qd2
- 2.Sxf5#
- 1...Rd2
- 2.Qc7#
- 1...Rc5
- 2.bxc5#
- 1...Rc6
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bc6
- 2.Qc7#
- 1...d4
- 2.Rxd4#
- 1...f4
- 2.Se4#
- 1...Rc1!
- threat
- 1.Rxc2?
- threat
- 2.Qc7#
- 1...Qe3
- 2.Sxf5#
- 1...Bd7
- 2.Qxd7#
- 1...Rc8!
- threat
- 1.Re5?
- threat
- 2.Rxd5#
- 1...fxe5
- 2.Bxe5#
- 1...Qd2
- 2.Sxf5#
- 1...Rd2
- 2.Qc7#
- 1...Rc5
- 2.bxc5#
- 1...Rc6
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bc6
- 2.Qc7#
- 1...d4
- 2.Rd5#
- 1...f4!
- threat
- 1.Bc6?
- Keys
- 1.Rd2!
- threat
- 2.Rxd5#
- 1...Qxd2
- 2.Sxf5#
- 1...Rxd2
- 2.Qc7#
- 1...Rc5
- 2.bxc5#
- 1...Rc6
- 2.Qd7#
- 1...Bb3
- 2.Qd7#
- 1...Bc6
- 2.Qc7#
- 1...d4
- 2.Rxd4#
- 1...f4
- 2.Se4#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(f);N_GUARD,P_PINR(B)::S(E),XP(e)
- Q(f);N_GUARD::S(E),XP(e)
- R(a);N_GUARD::QAB1(J)
- R(a);OGATE::P(F),XR(a)
- R(a);S_CUTB(c)::QAR1(J)
- R(a);N_GUARD::QAB1(J),XR(a)
- R(j);N_GUARD::QAB(J)
- R(j);N_GUARD::QAB(J),XR(j)
- B(c);N_GUARD::QAR1(J)
- B(c);S_CUTR(a)::QAB1(J)
- B(c);N_GUARD::QAR1(J),XB(c)
- Tries
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(a);XR(D)::QAR1(J)
- R(a);XB(I)::QAR1(J)
- B(c);XB(I)::QAB1(J)
- Q(f);::QAR1(J)
- R(j);::QAR1(J)
- R(j);::QAB1(J)
- Refutation
- K(g);P-FLIGHT,XB(I)
- Try
- R(B);P_PINP(d)
- Threat
- R1(B),XP(d)
- Vars
- Q(f);N_GUARD,P_PINR(B)::S(E),XP(e)
- Q(f);N_GUARD,N_SPINP(d)::S(E),XP(e)
- R(a);N_GUARD,N_SPINP(d)::QAB1(J)
- R(a);OGATE::P(F),XR(a)
- R(a);S_CUTB(c)::QAR1(J)
- B(c);N_GUARD::QAR1(J)
- B(c);S_CUTR(a)::QAB1(J)
- P(d);OGATEB::R(B),XP(d)
- P(e);N_GUARD::S(E)
- Refutation
- R(a);P_PINR(B)
- Try
- R(D);XR(a)
- Threat
- QAB1(J)
- Vars
- Q(f);N_GUARD::S(E),XP(e)
- B(c);N_GUARD::QAR1(J),XB(c)
- Refutation
- R(j);
- Try
- R(D);
- Threat
- R1(D),XP(d)
- Vars
- P(h);OGATE,XR(D)::B(A),XP(h)
- Q(f);N_GUARD::S(E),XP(e)
- R(a);N_GUARD::QAB1(J)
- R(a);OGATE::P(F),XR(a)
- R(a);S_CUTB(c)::QAR1(J)
- B(c);N_GUARD::QAR1(J)
- B(c);S_CUTR(a)::QAB1(J)
- P(d);::R1(D)
- Refutation
- P(e);
- Try
- Actual
- R(D);P_PINP(d)
- Threat
- R1(D),XP(d)
- Vars
- Q(f);N_GUARD,N_SPINP(d),XR(D)::S(E),XP(e)
- R(a);N_GUARD,N_SPINP(d),XR(D)::QAB1(J)
- R(a);OGATE::P(F),XR(a)
- R(a);S_CUTB(c)::QAR1(J)
- B(c);N_GUARD::QAR1(J)
- B(c);S_CUTR(a)::QAB1(J)
- P(d);OGATEB::R(D),XP(d)
- P(e);N_GUARD::S(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).