MESON Chess Problem Database
Problem Display
PID: 98577 (8/8/8/1p1NP1p1/1R1pkbP1/1P1NP1p1/2Q1n1K1/2R5 w - - 0 1)
Pypa, Volodimir Iosifovich
Problem (Zagreb), 1971
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.Qc6#
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sxc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5
- Tries
- 1.Sc5+?
- 1...Kxd5
- 2.Qe4#
- 1...Kxe5!
- 1...Kxd5
- 1.Sc3+?
- 1...Kxe3
- 2.Qxe2#
- 1...Sxc3!
- 1...Kxe3
- 1.Ra1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Rb1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Rd1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Re1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sc1
- 2.Sc3#
- 2.Sf6#
- 2.Rxd4#
- 1...Sg1
- 2.Sc3#
- 2.Sf6#
- 2.Rxd4#
- 1...Sc3
- 2.Sxc3#
- 2.Sf6#
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Rf1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Rg1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sxg1
- 2.Rxd4#
- 1...Sc1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Rh1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Qb1?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.S3f4#
- 1...Sxc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd5!
- 1...Bxe3
- 1.Qxe2?
- threat
- 2.Sc3#
- 2.Sf6#
- 2.Rxd4#
- 1...Bxe3
- 2.Sc3#
- 2.Sf6#
- 1...Bxe5
- 2.Sc3#
- 1...Kxd5!
- threat
- 1.Qc3?
- 1...Kxd5
- 2.Qc6#
- 1...Bxe3
- 2.Sf6#
- 1...Sxc1
- 2.Rxd4#
- 2.Qxd4#
- 1...Sxc3
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 2.Qxd4#
- 1...Bxe5!
- 1...Kxd5
- 1.Qc4?
- 1...Bxe3
- 2.Sf6#
- 1...Bxe5
- 2.Sc5#
- 1...Sxc1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...Sc3
- 2.Qxd4#
- 1...bxc4!
- 1...Bxe3
- 1.Sc5+?
- Keys
- 1.Qc6!
- 1...Kxd3
- 2.Qc2#
- 1...Bxe3
- 2.S5f4#
- 1...Bxe5
- 2.Sc5#
- 1...Sxc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Kxd3
- 1.Qc6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(d);N_SPINP(c),OGATEB,S_FLIGHT,XS(I)::QAB1(B)
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD,XR(A)::R1(G),XP(c)
- S(a);N_GUARD::R1(G),XP(c)
- Tries
- Try
- S(E);CHECK
- Vars
- K(d);N_SPINP(c),S_FLIGHT,XS(I)::QAB1(B)
- Refutation
- K(d);N_SPINP(c),P-FLIGHT,XP(J)
- Try
- S(I);CHECK
- Vars
- K(d);N_SPINP(c),P-FLIGHT,XP(F)::QAR1(B),XS(a)
- Refutation
- S(a);XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD,XR(A)::R1(G),XP(c)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- R(A);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- Q(B);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::QAB(B)+S(E)
- S(a);N_GUARD,XR(A)::R1(G),XP(c)
- S(a);N_GUARD::R1(G),XP(c)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- Q(B);XS(a)
- Threat
- DUALS(3)
- Vars
- B(e);XP(J)::S(I)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XS(I)
- Try
- Q(B);
- Vars
- K(d);N_SPINP(c),OGATEB,S_FLIGHT,XS(I)::QAB1(B)
- B(e);SBLOCK,XP(F)::S(I)
- S(a);N_GUARD,XQ(B)::R1(G),XP(c)
- Refutation
- B(e);XP(J)
- Try
- Q(B);
- Vars
- B(e);SBLOCK,XP(F)::S(I)
- B(e);SBLOCK,XP(J)::S(E)
- S(a);N_GUARD,XR(A)::QAR1(B),XP(c)
- S(a);N_GUARD::QAR1(B),XP(c)
- Refutation
- P(f);N_SPINP(c),XQ(B)
- Try
- Actual
- Q(B);
- Vars
- K(d);N_SPINP(c),OGATEB,S_FLIGHT,XS(E)::QAB1(B)
- B(e);SBLOCK,XP(F)::QAB(B)+S(I)
- B(e);SBLOCK,XP(J)::S(E)
- S(a);N_GUARD,XR(A)::R1(G),XP(c)
- S(a);N_GUARD::R1(G),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).