MESON Chess Problem Database
Problem Display
PID: 252939 (8/K1N5/2pp4/kbp4R/8/2P5/1PB1Q3/8 w - - 0 1)
Pimenov, Vitaly Ivanovich
Umnov, Evgeny Ivanovich
Die Schwalbe, 1930
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Bxe2
- 2.b4#
- 1...Bd3
- 2.b4#
- 1...Ba4
- 2.Qa6#
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.Qxa6#
- 2.b4#
- 1...Bxe2
- Tries
- 1.Rd5?
- 1...Bxe2
- 2.b4#
- 1...cxd5
- 2.Qxb5#
- 1...Bd3
- 2.b4#
- 1...Ba4
- 2.Qa6#
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.Qxa6#
- 2.b4#
- 1...c4!
- 1...Bxe2
- 1.Qd1?
- 1...c4
- 2.Qa1#
- 1...Bf1
- 2.Qa1#
- 2.b4#
- 1...Be2
- 2.Qa1#
- 2.b4#
- 1...Bd3
- 2.Qa1#
- 2.b4#
- 1...Ba4
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.Qa1#
- 2.b4#
- 1...d5!
- 1...c4
- 1.Qf1?
- 1...Bxf1
- 2.b4#
- 1...c4
- 2.Qa1#
- 1...Be2
- 2.Qa1#
- 2.b4#
- 1...Bd3
- 2.Qa1#
- 2.b4#
- 1...Ba4
- 2.Qa6#
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.Qxa6#
- 2.Qa1#
- 2.b4#
- 1...d5!
- 1...Bxf1
- 1.Qc4?
- 1...Bxc4
- 2.b4#
- 1...Ba4
- 2.Qa6#
- 2.Qxa4#
- 2.Qb4#
- 2.b4#
- 1...Ba6
- 2.Qa2#
- 2.Qxa6#
- 2.Qa4#
- 2.Qb4#
- 2.b4#
- 1...d5!
- 1...Bxc4
- 1.Qd2?
- threat
- 2.c4#
- 1...Bc4
- 2.b4#
- 1...c4!
- threat
- 1.Qf2?
- 1...c4
- 2.Qb6#
- 1...Bf1
- 2.b4#
- 1...Be2
- 2.b4#
- 1...Bd3
- 2.b4#
- 1...Ba4
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.b4#
- 1...d5!
- 1...c4
- 1.Qe3?
- 1...c4
- 2.Qb6#
- 1...Bf1
- 2.b4#
- 1...Be2
- 2.b4#
- 1...Bd3
- 2.b4#
- 1...Ba4
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.b4#
- 1...d5!
- 1...c4
- 1.b3?
- 1...Bxe2
- 2.b4#
- 1...c4
- 2.b4#
- 1...Bd3
- 2.b4#
- 1...Ba4
- 2.Qa6#
- 2.b4#
- 1...Bc4
- 2.b4#
- 1...Ba6
- 2.Qxa6#
- 2.b4#
- 1...d5!
- 1...Bxe2
- 1.Rd5?
- Keys
- 1.Qe1!
- threat
- 2.c4#
- 1...c4
- 2.Qa1#
- 1...Bc4
- 2.b4#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- B(b);P_SPINP(c),XQ(C)::P(A)
- B(b);P_SPINP(c)::P(A)
- Tries
- Try
- R(E);
- Vars
- B(b);P_SPINP(c),XQ(C)::P(A)
- P(d);N_GUARD,XR(E)::QAR1(C),XB(b)
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(c);P_SPINB(b)
- Try
- Q(C);
- Vars
- P(c);P_SPINB(b)::QAR(C)
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(e);
- Try
- Q(C);
- Vars
- B(b);P_SPINP(c),XQ(C)::P(A)
- P(c);P_SPINB(b)::QAR(C)
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(e);
- Try
- Q(C);
- Vars
- B(b);P_SPINP(c),XQ(C)::P(A)
- Refutation
- P(e);
- Try
- Q(C);
- Threat
- QAB(C)+P(D)
- Vars
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(c);P_SPINB(b)
- Try
- Q(C);
- Vars
- P(c);OGATE,P_SPINB(b)::QAB1(C)
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(e);
- Try
- Q(C);
- Vars
- P(c);OGATE,P_SPINB(b)::QAB1(C)
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(e);
- Try
- P(A);
- Vars
- B(b);P_SPINP(c),XQ(C)::P(A)
- P(c);N_GUARD,P_SPINB(b)::P(A)
- B(b);P_SPINP(c)::P(A)
- Refutation
- P(e);
- Try
- Actual
- Q(C);
- Threat
- QAB(C)+P(D)
- Vars
- P(c);P_SPINB(b)::QAR(C)
- B(b);P_SPINP(c)::P(A)
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).