MESON Chess Problem Database
Problem Display
PID: 206745 (6QK/7P/3ppR2/1Pnk4/1P1bp1P1/4p3/4B3/3R4 w - - 0 1)
Kalina, Vasily Emanuilovich
64 Shakhmatnoe obozrenie, 1925
#2
9 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Qg5#
- 1...Sb3
- 2.Qxe6#
- 1...Sd3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...Ke5
- Tries
- 1.Kg7?
- 1...Sd3
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...Ke5!
- 1...Sd3
- 1.Bf1?
- 1...Ke5
- 2.Qg5#
- 1...Sd3
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...e2!
- 1...Ke5
- 1.Bc4+?
- 1...Ke5
- 2.Qg5#
- 1...Kxc4!
- 1...Ke5
- 1.Rd2?
- 1...Ke5
- 2.Qg5#
- 1...Sd3
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...exd2!
- 1...Ke5
- 1.Qf7?
- 1...Sd3
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...Ke5!
- 1...Sd3
- 1.bxc5?
- 1...Ke5
- 2.Qxe6#
- 2.Qg5#
- 1...dxc5
- 2.Qxe6#
- 1...Kxc5!
- 1...Ke5
- 1.g5?
- 1...Sd3
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...Ke5!
- 1...Sd3
- 1.Kg7?
- Keys
- 1.Qe8!
- 1...Ke5
- 2.Rf5#
- 1...Sd3
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sa4
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sd7
- 2.Qxe6#
- 1...e5
- 2.Qc6#
- 1...Ke5
- 1.Qe8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT::QAR2(H)
- S(d);N_GUARD::QAB1(H),XP(g)
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- S(d);N_GUARD::QAB1(H),XP(g)
- Refutation
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT
- Try
- B(B);
- Vars
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT::QAR2(H)
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- S(d);N_GUARD::QAB1(H),XP(g)
- Refutation
- P(a);
- Try
- B(B);CHECK
- Vars
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT::QAR2(H)
- Refutation
- K(e);N_SPINB(b),S_FLIGHT,XB(B)
- Try
- R(A);
- Vars
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT::QAR2(H)
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- S(d);N_GUARD::QAB1(H),XP(g)
- Refutation
- P(a);N_SPINB(b),XR(A)
- Try
- Q(H);
- Vars
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- S(d);N_GUARD::QAB1(H),XP(g)
- Refutation
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT
- Try
- P(C);XS(d)
- Vars
- P(f);SBLOCK,XP(C)::QAB1(H),XP(g)
- Refutation
- K(e);N_SPINB(b),N_SPINP(g),P-FLIGHT,XP(C)
- Try
- P(D);
- Vars
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- S(d);N_GUARD::QAB1(H),XP(g)
- Refutation
- K(e);N_PINR(F),N_SPINB(b),N_SPINP(g),P-FLIGHT
- Try
- Actual
- Q(H);N_PINP(g)
- Vars
- K(e);N_PINR(F),N_SPINB(b),P-FLIGHT,P_SPINP(g)::R1(F)
- S(d);N_GUARD,N_SPINB(b)::QAB1(H),XP(g)
- S(d);N_GUARD::QAB1(H),XP(g)
- P(g);N_PINR(F),SBLOCK::QAB1(H)
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).