MESON Chess Problem Database
Problem Display
PID: 175764 (3N4/2p5/1p6/1pk1p3/3RP3/3p4/1K1N1B2/2n5 w - - 0 1)
Bobrov, Pavel Pavlovich
Rigaer Tageblatt, 1898
#2
6 + 7
| 6490 | yacpdb | 2018 |
| 5454 | Near Snap | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b4
- 2.Rd5#
- 1...c6
- 2.Se6#
- 2.Sb7#
- 1...Sa2
- Tries
- 1.Ka1?
- 1...Sb3+
- 2.Sxb3#
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...c6
- 2.Se6#
- 2.Sb7#
- 1...exd4!
- 1...Sb3+
- 1.Kb1?
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...c6
- 2.Se6#
- 2.Sb7#
- 1...exd4!
- 1...b4
- 1.Kxc1?
- threat
- 2.Sb3#
- 1...b4
- 2.Rd5#
- 1...exd4!
- threat
- 1.Be1?
- 1...Kxd4
- 2.Bf2#
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...c6
- 2.Se6#
- 1...exd4!
- 1...Kxd4
- 1.Bg1?
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...c6
- 2.Se6#
- 2.Sb7#
- 1...exd4!
- 1...b4
- 1.Be3?
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...c6
- 2.Se6#
- 2.Sb7#
- 1...exd4!
- 1...b4
- 1.Bg3?
- 1...Kxd4
- 2.Bf2#
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...c6
- 2.Se6#
- 1...exd4!
- 1...Kxd4
- 1.Ka1?
- Keys
- 1.Bh4!
- 1...Kxd4
- 2.Bf2#
- 1...exd4
- 2.Be7#
- 1...b4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...c6
- 2.Se6#
- 1...Kxd4
- 1.Bh4!
Anticipated by 157649(1894)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(c);SBLOCK::B(C)+R(D),DCHECK
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- S(a);CHECK,N_GUARD::S(B),XS(a)
- P(c);SBLOCK::B(C)+R(D),DCHECK
- S(a);N_GUARD::S(B)
- Refutation
- P(e);P_SPINP(e),XR(D)
- Try
- K(A);P-FLIGHT
- Vars
- P(c);SBLOCK::B(C)+R(D),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);P_SPINP(e),XR(D)
- Try
- K(A);S_FLIGHT,XS(a)
- Threat
- S(B)
- Vars
- P(c);SBLOCK::B(C)+R(D),DCHECK
- Refutation
- P(e);P_SPINP(e),XR(D)
- Try
- B(C);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(D)::B(C)
- P(c);SBLOCK::R1(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(g);SBLOCK::S(F)
- Refutation
- P(e);XR(D)
- Try
- B(C);
- Vars
- P(c);SBLOCK::B(C)+R(D),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);P_SPINP(e),XR(D)
- Try
- B(C);
- Vars
- P(c);SBLOCK::B(C)+R(D),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(e);P_SPINP(e),XR(D)
- Try
- B(C);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(D)::B(C)
- P(c);SBLOCK::R1(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(g);SBLOCK::S(F)
- Refutation
- P(e);XR(D)
- Try
- Actual
- B(C);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(D)::B(C)
- P(e);SBLOCK,XR(D)::B(C)
- P(c);SBLOCK::R1(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(g);SBLOCK::S(F)
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).