MESON Chess Problem Database
Problem Display
PID: 226712 (1R5b/K4bB1/1QPp1qp1/p2p3r/P7/N1kB3p/pp2P3/1r3N2 w - - 0 1)
Paslack, Rainer
Die Schwalbe, 2019
#2
10 + 13
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qxd4#
- 1...Ra1
- 2.Qxb2#
- 1...Rc1
- 2.Qxb2#
- 1...Rd1
- 2.Qxb2#
- 1...Re1
- 2.Qxb2#
- 1...Rxf1
- 2.Qxb2#
- 1...a1S
- 2.Sxb1#
- 1...a1B
- 2.Sxb1#
- 1...Qd4
- Tries
- 1.Sc2?
- threat
- 2.Qxa5#
- 2.Qb3#
- 1...Rxf1
- 2.Qxa5#
- 1...a1S
- 2.Qxa5#
- 1...Qd4
- 2.Qxd4#
- 1...Rh4
- 2.Qb3#
- 1...d4!
- threat
- 1.Bxb1?
- threat
- 2.Qe3#
- 2.Qxb2#
- 1...axb1B
- 2.Qxb2#
- 1...axb1R
- 2.Qe3#
- 1...a1Q
- 2.Qe3#
- 1...a1B
- 2.Qe3#
- 1...Qd4
- 2.Qxd4#
- 1...Re5
- 2.Qxb2#
- 1...d4
- 2.Qxb2#
- 1...axb1Q!
- threat
- 1.Bc4?
- threat
- 2.Qe3#
- 1...d4
- 2.Qb3#
- 1...Qd4
- 2.Qxd4#
- 1...Rd1
- 2.Qxb2#
- 1...Re5!
- threat
- 1.Be4?
- threat
- 2.Qe3#
- 1...Qd4
- 2.Qxd4#
- 1...Rd1
- 2.Qxb2#
- 1...d4!
- threat
- 1.Qe3?
- threat
- 2.Bxb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bf5#
- 2.Ba6#
- 2.Bxg6#
- 1...Qd4+
- 2.Qxd4#
- 1...Rxf1
- 2.Bb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bf5#
- 2.Ba6#
- 2.Bxg6#
- 1...d4
- 2.Qd2#
- 1...Ra1
- 2.Bb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bf5#
- 2.Ba6#
- 2.Bxg6#
- 1...Rc1
- 2.Bb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bf5#
- 2.Ba6#
- 2.Bxg6#
- 1...Re1
- 2.Bb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bf5#
- 2.Ba6#
- 2.Bxg6#
- 1...Re5
- 2.Be4#
- 1...Rf5
- 2.Bxb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bxf5#
- 2.Ba6#
- 1...g5
- 2.Bxb1#
- 2.Bc2#
- 2.Bc4#
- 2.Be4#
- 2.Bf5#
- 2.Ba6#
- 2.Bg6#
- 2.Bh7#
- 1...Rd1!
- threat
- 1.Sc2?
- Keys
- 1.Bf5!
- threat
- 2.Qe3#
- 1...d4
- 2.Qxa5#
- 1...Qd4
- 2.Qxd4#
- 1...Rd1
- 2.Qxb2#
- threat
- 1.Bf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(j);N_GUARD,P_PINQ(F)::QAB1(F),XQ(j)
- R(a);N_GUARD::QAB1(F),XP(c)
- R(a);N_GUARD,XS(A)::QAB1(F),XP(c)
- P(b);N_GUARD::S(C),XR(a)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(a);XS(A)::QAB(F),XP(f)
- P(b);::QAB(F),XP(f)
- Q(j);N_GUARD,P_PINQ(F)::QAB1(F),XQ(j)
- R(h);::QAR1(F)
- Refutation
- P(g);N_SPINQ(j)
- Try
- B(D);XR(a)
- Threat
- DUALS(2)
- Vars
- P(b);XB(D)::QAB1(F),XP(c)
- P(b);XB(D)::QAR2(F)
- P(b);::QAR2(F)
- Q(j);N_GUARD,P_PINQ(F)::QAB1(F),XQ(j)
- R(h);N_SPINQ(j)::QAB1(F),XP(c)
- P(g);N_SPINQ(j),SBLOCK::QAB1(F),XP(c)
- Refutation
- P(b);XB(D)
- Try
- B(D);
- Threat
- QAR2(F)
- Vars
- P(g);N_SPINQ(j),SBLOCK::QAR1(F)
- Q(j);N_GUARD,P_PINQ(F)::QAB1(F),XQ(j)
- R(a);N_GUARD::QAB1(F),XP(c)
- Refutation
- R(h);N_SPINQ(j)
- Try
- B(D);
- Threat
- QAR2(F)
- Vars
- Q(j);N_GUARD,P_PINQ(F)::QAB1(F),XQ(j)
- R(a);N_GUARD::QAB1(F),XP(c)
- Refutation
- P(g);N_SPINQ(j)
- Try
- Q(F);
- Threat
- DUALS(7)
- Vars
- Q(j);CHECK,N_GUARD::QAB1(F),XQ(j)
- P(g);N_SPINQ(j),SBLOCK::QAB1(F)
- R(h);N_SPINQ(j)::QAR(F)+B(D)
- Refutation
- R(a);
- Try
- Actual
- B(D);
- Threat
- QAR2(F)
- Vars
- P(g);N_SPINQ(j),SBLOCK::QAB(F),XP(f)
- Q(j);N_GUARD,P_PINQ(F)::QAB1(F),XQ(j)
- R(a);N_GUARD::QAB1(F),XP(c)
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).