MESON Chess Problem Database
Problem Display
PID: 250558 (2B4R/4Q3/6kb/8/8/4N3/8/3K4 w - - 0 1)
Markovtsy, Vassyl Yuriovich
Schweizerische Schachzeitung, 1997
#2
5 + 2
SOLUTION
- SOUND
- Sets
- 1...Bf4
- 2.Bf5#
- 1...Bg5
- 2.Bf5#
- 1...Bg7
- 2.Bf5#
- 1...Bf8
- 2.Bf5#
- 1...Bf4
- Tries
- 1.Sg2?
- 1...Kh5
- 2.Sf4#
- 1...Bc1
- 2.Sh4#
- 1...Bd2
- 2.Sh4#
- 1...Be3
- 2.Sh4#
- 1...Bf4
- 2.Sxf4#
- 2.Sh4#
- 1...Bg7
- 2.Sf4#
- 2.Sh4#
- 1...Bf8
- 2.Sf4#
- 2.Sh4#
- 1...Bg5!
- 1...Kh5
- 1.Sg4?
- threat
- 2.Rxh6#
- 1...Kh5
- 2.Rxh6#
- 1...Bc1
- 2.Se5#
- 2.Qf6#
- 1...Bd2
- 2.Se5#
- 2.Qf6#
- 1...Be3
- 2.Se5#
- 2.Qf6#
- 1...Bf4
- 2.Qf6#
- 1...Bg5
- 2.Se5#
- 2.Qh7#
- 1...Bf8
- 2.Se5#
- 2.Qf6#
- 1...Bg7!
- threat
- 1.Sf5?
- threat
- 2.Rxh6#
- 1...Bc1
- 2.Sh4#
- 2.Qg7#
- 1...Bd2
- 2.Sh4#
- 2.Qg7#
- 1...Be3
- 2.Sh4#
- 2.Qg7#
- 1...Bf4
- 2.Sh4#
- 2.Qg7#
- 1...Bg5
- 2.Qg7#
- 1...Bg7
- 2.Sh4#
- 2.Qxg7#
- 1...Bf8
- 2.Sh4#
- 1...Kh5!
- threat
- 1.Bg4?
- 1...Bf4
- 2.Bf5#
- 2.Bh5#
- 1...Bg5
- 2.Bf5#
- 2.Bh5#
- 1...Bg7
- 2.Bf5#
- 2.Bh5#
- 1...Bf8
- 2.Bf5#
- 2.Bh5#
- 1...Bxe3!
- 1...Bf4
- 1.Ba6?
- 1...Bxe3
- 2.Bd3#
- 1...Bf4
- 2.Bd3#
- 1...Bg5
- 2.Bd3#
- 1...Bg7
- 2.Bd3#
- 1...Bf8
- 2.Bd3#
- 1...Kh5!
- 1...Bxe3
- 1.Be6?
- 1...Kh5
- 2.Bf7#
- 1...Bf4
- 2.Bf5#
- 1...Bg5
- 2.Bf5#
- 2.Qf7#
- 1...Bg7
- 2.Bf5#
- 2.Bf7#
- 1...Bf8
- 2.Bf5#
- 1...Bxe3!
- 1...Kh5
- 1.Bb7?
- 1...Bxe3
- 2.Be4#
- 1...Bf4
- 2.Be4#
- 1...Bg5
- 2.Be4#
- 1...Bg7
- 2.Be4#
- 1...Bf8
- 2.Be4#
- 1...Kh5!
- 1...Bxe3
- 1.Bd7?
- threat
- 2.Be8#
- 1...Kh5
- 2.Be8#
- 1...Bxe3!
- threat
- 1.Rh7?
- 1...Bxe3
- 2.Qg7#
- 1...Bf4
- 2.Bf5#
- 2.Qg7#
- 1...Bg5
- 2.Bf5#
- 2.Qf7#
- 2.Qg7#
- 1...Bg7
- 2.Bf5#
- 2.Qxg7#
- 1...Bf8
- 2.Bf5#
- 1...Kh5!
- 1...Bxe3
- 1.Rg8+?
- 1...Kh5
- 2.Bg4#
- 1...Bg7!
- 1...Kh5
- 1.Qf6+?
- 1...Kh5
- 2.Bg4#
- 2.Rxh6#
- 2.Qxh6#
- 1...Kxf6!
- 1...Kh5
- 1.Qe6+?
- 1...Kg5
- 2.Qxh6#
- 1...Kh5
- 2.Qg4#
- 2.Qxh6#
- 1...Kg7!
- 1...Kg5
- 1.Qh7+?
- 1...Kg5
- 2.Qxh6#
- 1...Kh5
- 2.Qxh6#
- 1...Kf6!
- 1...Kg5
- 1.Sg2?
- Keys
- 1.Sd5!
- 1...Kh5
- 2.Sf4#
- 1...Bc1
- 2.Qf6#
- 1...Bd2
- 2.Qf6#
- 1...Be3
- 2.Qf6#
- 1...Bf4
- 2.Sxf4#
- 2.Qf6#
- 1...Bg5
- 2.Qh7#
- 1...Bg7
- 2.Sf4#
- 1...Bf8
- 2.Sf4#
- 2.Qf6#
- 1...Kh5
- 1.Sd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- B(b);::B(D)
- Tries
- Try
- S(B);
- Vars
- K(a);P_SPINB(b),S_FLIGHT::S(B)
- B(b);::S(B)
- Refutation
- B(b);
- Try
- S(B);
- Threat
- R1(E),XB(b)
- Vars
- K(a);P_SPINB(b),S_FLIGHT::R1(E),XB(b)
- B(b);::QAR1(C)
- Refutation
- B(b);
- Try
- S(B);
- Threat
- R1(E),XB(b)
- Vars
- B(b);N_GUARD,SBLOCK::QAR1(C)
- B(b);::S(B)
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- B(D);
- Refutation
- B(b);XS(B)
- Try
- B(D);
- Vars
- B(b);XS(B)::B(D)
- B(b);::B(D)
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- B(D);
- Vars
- K(a);N_GUARD,P_SPINB(b),S_FLIGHT::B(D)
- B(b);::B(D)
- Refutation
- B(b);XS(B)
- Try
- B(D);
- Vars
- B(b);XS(B)::B(D)
- B(b);::B(D)
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- B(D);
- Threat
- B(D)
- Vars
- K(a);P_SPINB(b),S_FLIGHT::B(D)
- Refutation
- B(b);XS(B)
- Try
- R(E);
- Vars
- B(b);N_GUARD,XS(B)::QAR1(C)
- B(b);::B(D)
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- R(E);CHECK
- Vars
- K(a);S_CUTB(b),S_FLIGHT::B(D)
- Refutation
- B(b);P_SPINB(b)
- Try
- Q(C);CHECK
- Refutation
- K(a);P-FLIGHT,XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(a);OGATE,P-FLIGHT::QAB1(C),XB(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(C),XB(b)
- K(a);N_GUARD,P_SPINB(b),S_FLIGHT::QAR1(C),XB(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- S(B);
- Vars
- K(a);P_SPINB(b),S_FLIGHT::S(B)
- B(b);::QAR1(C)
- B(b);SBLOCK::QAB1(C)
- B(b);N_GUARD::S(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).