Meson Chess Problem Database

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Problem Display

PID: 7307 (8/3p1N1B/3P4/2p1P3/2P2kpK/p5R1/P7/BRb5 w - - 0 1)

Semenenko, Aleksandr

Semenenko, Valery Yurevich

1st Prize, Poltava, 1999

8/3p1N1B/3P4/2p1P3/2P2kpK/p5R1/P7/BRb5

#2

10 + 6

SOLUTION

SOUND
Sets
- 1...Bb2
  - 2.Rf1#
- 1...Bd2
  - 2.Rf1#
Tries
- 1.Sg5?
  - 1...Bd2
    - 2.Rf1#
  - 1...Be3
    - 2.Rxg4#
  - 1...Bb2!
- 1.Bc3?
  - 1...Bb2
    - 2.Bd2#
    - 2.Rf1#
  - 1...Bd2
    - 2.Bxd2#
    - 2.Rf1#
  - 1...Be3!
- 1.Bd4?
  - 1...Be3
    - 2.Bxe3#
  - 1...Bb2
    - 2.Be3#
    - 2.Rf1#
  - 1...Bd2
    - 2.Rf1#
  - 1...cxd4!
- 1.Bc2?
  - 1...Bb2
    - 2.Rf1#
  - 1...Bd2
    - 2.Rf1#
  - 1...Be3!
- 1.Bd3?
  - 1...Bb2
    - 2.Rf1#
  - 1...Bd2
    - 2.Rf1#
  - 1...Be3!
- 1.Bg6?
  - 1...Bb2
    - 2.Rf1#
  - 1...Bd2
    - 2.Rf1#
  - 1...Be3!
Keys
- 1.e6!
  - threat
    - 2.Be5#
  - 1...Bb2
    - 2.Rf1#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
Sets
- B(a);OGATE::R(B)
Tries
- Try
  - S(I);
  - Vars
    - B(a);OGATE::R(B)
    - B(a);SBLOCK::R1(D),XP(d)
  - Refutation
    - B(a);
- Try
  - B(A);
  - Refutation
    - B(a);
- Try
  - B(A);
  - Vars
    - B(a);N_GUARD::B(A),XB(a)
    - B(a);OGATE::R(B)
  - Refutation
    - P(e);XB(A)
- Try
  - B(J);
  - Vars
    - B(a);OGATE::R(B)
  - Refutation
    - B(a);
- Try
  - B(J);
  - Vars
    - B(a);OGATE::R(B)
  - Refutation
    - B(a);
- Try
  - B(J);
  - Vars
    - B(a);OGATE::R(B)
  - Refutation
    - B(a);
Actual
- P(G);
- Threat
  - B(A)
- Vars
  - B(a);OGATE::R(B)

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).