MESON Chess Problem Database
Problem Display
PID: 143095 (4B3/1p6/1p3P2/1P1NP1p1/n1kpp1R1/Bp4QK/1Pb2NPP/2R5 w - - 0 1)
Pimenov, Sergey Ivanovich
Umnov, Evgeny Ivanovich
Magyar Sakkvilag, 1930
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.Bf7#
- 1...Sxb2
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 1...Sc5
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...e3
- 2.Sxe3#
- 1...Kxd5
- Tries
- 1.Bd6?
- 1...Kxd5
- 2.Bf7#
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Sc5!
- 1...Kxd5
- 1.Be7?
- 1...Kxd5
- 2.Bf7#
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Sc5!
- 1...Kxd5
- 1.Bf8?
- 1...Kxd5
- 2.Bf7#
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Sc5!
- 1...Kxd5
- 1.Bc6?
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Rxe4#
- 2.Qxd3#
- 1...Sc5
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...bxc6!
- 1...Sxb2
- 1.Bd7?
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...Sc5
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Kxd5!
- 1...Sxb2
- 1.Rxc2+?
- 1...Kxd5
- 2.Bf7#
- 1...Sc3
- 2.Sxb6#
- 1...bxc2!
- 1...Kxd5
- 1.Rxe4?
- threat
- 2.Se3#
- 1...Kxd5
- 2.Bf7#
- 1...Sxb2
- 2.Sxb6#
- 1...g4+!
- threat
- 1.Qd3+?
- 1...exd3
- 2.Se3#
- 1...Kxd5!
- 1...exd3
- 1.Qf3?
- 1...Sxb2
- 2.Sxb6#
- 1...exf3
- 2.Se3#
- 1...d3
- 2.Qxe4#
- 2.Qxd3#
- 1...Sc5
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Kxd5!
- 1...Sxb2
- 1.e6?
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...Sc5
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Kxd5!
- 1...Sxb2
- 1.f7?
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Qxd3#
- 1...Sc5
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 1...e3
- 2.Sxe3#
- 1...Kxd5!
- 1...Sxb2
- 1.Bd6?
- Keys
- 1.Sxe4!
- 1...Kxd5
- 2.Bf7#
- 1...Sxb2
- 2.Sxb6#
- 1...d3
- 2.Sec3#
- 1...Sc3
- 2.Sxb6#
- 1...Sc5
- 2.Sxb6#
- 1...Kxd5
- 1.Sxe4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- K(d);N_SPINB(a),OGATEB,S_FLIGHT,XS(K)::B(N)
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- S(c);N_GUARD::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- P(f);P_SPINP(e)::S(K),XP(f)
- Tries
- Try
- B(F);
- Vars
- K(d);N_SPINB(a),OGATEB,S_FLIGHT,XS(K)::B(N)
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- S(c);
- Try
- B(F);
- Vars
- K(d);N_SPINB(a),OGATEB,S_FLIGHT,XS(K)::B(N)
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- S(c);
- Try
- B(F);
- Vars
- K(d);N_SPINB(a),OGATEB,S_FLIGHT,XS(K)::B(N)
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- S(c);
- Try
- B(N);
- Vars
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- S(c);N_GUARD::S(K),XP(h)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- P(i);XB(N)
- Try
- B(N);
- Vars
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- S(c);N_GUARD::S(K),XP(h)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- K(d);N_SPINB(a),S_FLIGHT,XS(K)
- Try
- R(A);CHECK,XB(a)
- Vars
- K(d);S_FLIGHT,XS(K)::B(N)
- S(c);P_SPINS(c)::S(K),XP(h)
- Refutation
- P(b);XR(A)
- Try
- R(I);P_PINP(e),XP(f)
- Threat
- S(K)
- Vars
- K(d);N_SPINB(a),N_SPINP(e),OGATEB,S_FLIGHT,XS(K)::B(N)
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- Refutation
- P(g);CHECK
- Try
- Q(G);CHECK
- Vars
- P(f);P_SPINP(e),XQ(G)::S(K)
- Refutation
- K(d);N_SPINB(a),P_SPINP(e),S_FLIGHT,XS(K)
- Try
- Q(G);
- Vars
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(f);P_SPINP(e),XQ(G)::S(K)
- S(c);N_GUARD::S(K),XP(h)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- K(d);N_SPINB(a),P_SPINP(f),S_FLIGHT,XS(K)
- Try
- P(L);
- Vars
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- S(c);N_GUARD::S(K),XP(h)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- K(d);N_SPINB(a),S_FLIGHT,XS(K)
- Try
- P(M);
- Vars
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);P_SPINP(f)::QAB1(G),XP(e)
- S(c);N_GUARD::S(K),XP(h)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- P(f);P_SPINP(e)::S(K),XP(f)
- Refutation
- K(d);N_SPINB(a),S_FLIGHT,XS(K)
- Try
- Actual
- S(C);XP(f)
- Vars
- K(d);N_SPINB(a),OGATEB,S_FLIGHT,XS(K)::B(N)
- S(c);N_GUARD,XP(B)::S(K),XP(h)
- P(e);::R(I)+S(C)
- S(c);N_GUARD,N_SPINB(a)::S(K),XP(h)
- S(c);N_GUARD::S(K),XP(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).