MESON Chess Problem Database
Problem Display
PID: 110679 (8/1KQp4/1P6/R1Nk4/1P1P2n1/3Rp3/4P3/5N2 w - - 0 1)
Przepiorka, Dawid
Match: Netherlands - Poland, 1937
#2
10 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Sa6#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...d6
- 2.Qf7#
- 1...Kc4
- Tries
- 1.Ka7?
- 1...Kc4
- 2.Sa6#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...d6!
- 1...Kc4
- 1.Ka8?
- 1...Kc4
- 2.Sa6#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...d6!
- 1...Kc4
- 1.Kb8?
- 1...Kc4
- 2.Sa6#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...d6!
- 1...Kc4
- 1.Kc8?
- 1...Kc4
- 2.Sa6#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...d6!
- 1...Kc4
- 1.Sd2?
- threat
- 2.Qxd7#
- 1...d6
- 2.Qc6#
- 2.Qf7#
- 1...Se5
- 2.Qxe5#
- 2.dxe5#
- 1...Sf6
- 2.Qe5#
- 1...exd2!
- threat
- 1.Sb3+?
- 1...Ke4
- 2.Sg3#
- 1...Ke6!
- 1...Ke4
- 1.Sa4+?
- 1...Ke4
- 2.Sg3#
- 2.Sc3#
- 1...Ke6!
- 1...Ke4
- 1.Se4+?
- 1...Kxe4
- 2.Sg3#
- 1...Ke6!
- 1...Kxe4
- 1.Sa6+?
- 1...Ke4
- 2.Sg3#
- 1...Ke6!
- 1...Ke4
- 1.Se6+?
- 1...Ke4
- 2.Sg3#
- 2.Sg5#
- 2.Qf4#
- 1...Kxe6!
- 1...Ke4
- 1.Sxd7+?
- 1...Ke4
- 2.Sg3#
- 1...Ke6!
- 1...Ke4
- 1.Rd1?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ra1?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ra2?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Raa3?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ra4?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Rb5?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ra6?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ra7?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ra8?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Qb8?
- 1...d6
- 2.Qg8#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.b5?
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Se5
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4!
- 1...d6
- 1.Ka7?
- Keys
- 1.Qf4!
- 1...Kc4
- 2.d5#
- 1...Se5
- 2.dxe5#
- 1...d6
- 2.Qf7#
- 1...Sf2
- 2.Sxe3#
- 1...Sh2
- 2.Sxe3#
- 1...Sf6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Kc4
- 1.Qf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(c);S_FLIGHT::QAR(J)+S(G)
- S(b);N_GUARD::S(A),XP(a)
- P(d);OGATE,SBLOCK::QAB(J)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- K(c);S_FLIGHT::QAR(J)+S(G)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- P(d);
- Try
- K(I);S_FLIGHT
- Vars
- K(c);S_FLIGHT::QAR(J)+S(G)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- P(d);
- Try
- K(I);P-FLIGHT
- Vars
- K(c);S_FLIGHT::QAR(J)+S(G)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- P(d);
- Try
- K(I);S_FLIGHT
- Vars
- K(c);S_FLIGHT::QAR(J)+S(G)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- P(d);
- Try
- S(A);
- Threat
- QAR2(J),XP(d)
- Vars
- S(b);N_GUARD::QAR1(J)
- Refutation
- P(a);XS(A)
- Try
- S(G);CHECK
- Vars
- K(c);S_FLIGHT::S(A)
- Refutation
- K(c);S_FLIGHT
- Try
- S(G);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- K(c);S_FLIGHT,XS(G)::S(A)
- Refutation
- K(c);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- K(c);S_FLIGHT::S(A)
- Refutation
- K(c);S_FLIGHT
- Try
- S(G);CHECK
- Refutation
- K(c);S_FLIGHT,XS(G)
- Try
- S(G);CHECK,XP(d)
- Vars
- K(c);S_FLIGHT::S(A)
- Refutation
- K(c);S_FLIGHT
- Try
- R(C);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- R(F);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(J);
- Vars
- P(d);SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- P(D);
- Vars
- P(d);OGATE,SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- Q(J);
- Vars
- K(c);OGATE,S_FLIGHT::QAR(J)+P(E)
- S(b);OGATE::R(C)+P(E),XS(b)
- P(d);SBLOCK::QAB(J)
- S(b);N_GUARD::S(A),XP(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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