MESON Chess Problem Database
Problem Display
PID: 198584 (K2B4/6p1/1N2p1R1/3pk3/4n2R/3B4/3P4/1Q6 w - - 0 1)
Paarmann, Armin
Die Schwalbe, 1974
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Kf5
- 2.Rg5#
- 1...Sxd2
- 2.Bc7#
- 1...Sf2
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sg3
- 2.Bc7#
- 1...Sc5
- 2.Bc7#
- 1...Sg5
- 2.Bc7#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Bc7#
- 1...Kf5
- Tries
- 1.Sc4+?
- 1...Kd4
- 2.Bb6#
- 1...Kf5
- 2.Rg5#
- 1...dxc4!
- 1...Kd4
- 1.Sd7+?
- 1...Kd4
- 2.Bb6#
- 1...Kf5
- 2.Rg5#
- 1...Kd6!
- 1...Kd4
- 1.Qa2?
- 1...Kf5
- 2.Rg5#
- 1...Kd6
- 2.Qxd5#
- 1...Sxd2
- 2.Bc7#
- 1...Sf2
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sg3
- 2.Bc7#
- 1...Sc5
- 2.Bc7#
- 1...Sg5
- 2.Bc7#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Bc7#
- 1...d4
- 2.Qxe6#
- 1...Kd4!
- 1...Kf5
- 1.Qc2?
- 1...Kd4
- 2.Qc3#
- 1...Kf5
- 2.Rg5#
- 1...Kd6
- 2.Qc7#
- 1...Sxd2
- 2.Bc7#
- 2.Qc7#
- 1...Sf2
- 2.Bc7#
- 2.Qc7#
- 1...Sc3
- 2.Bc7#
- 1...Sg3
- 2.Bc7#
- 2.Qc7#
- 1...Sc5
- 2.Bc7#
- 1...Sg5
- 2.Bc7#
- 2.Qc7#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Bc7#
- 2.Qc7#
- 1...d4!
- 1...Kd4
- 1.Qc1?
- 1...Kd4
- 2.Qc3#
- 1...Kf5
- 2.Rg5#
- 1...Kd6
- 2.Qc7#
- 1...Sxd2
- 2.Bc7#
- 2.Qc7#
- 1...Sf2
- 2.Bc7#
- 2.Qc7#
- 1...Sc3
- 2.Bc7#
- 1...Sg3
- 2.Bc7#
- 2.Qc7#
- 1...Sc5
- 2.Bc7#
- 1...Sg5
- 2.Bc7#
- 2.Qc7#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Bc7#
- 2.Qc7#
- 1...d4!
- 1...Kd4
- 1.Qb4?
- 1...Kf5
- 2.Rg5#
- 1...Sxd2
- 2.Sd7#
- 2.Bc7#
- 2.Rh5#
- 2.Rg5#
- 2.Qf4#
- 1...Sf2
- 2.Sd7#
- 2.Bc7#
- 2.Rh5#
- 2.Rg5#
- 2.Qf4#
- 1...Sc3
- 2.Sd7#
- 2.Bc7#
- 2.Rh5#
- 2.Rg5#
- 2.Qf4#
- 1...Sg3
- 2.Sd7#
- 2.Bc7#
- 2.Qf4#
- 1...Sc5
- 2.Bc7#
- 2.Qf4#
- 1...Sg5
- 2.Sd7#
- 2.Bc7#
- 2.Rxg5#
- 2.Qf4#
- 1...Sd6
- 2.Sd7#
- 2.Qd4#
- 2.Qf4#
- 1...Sf6
- 2.Bc7#
- 2.Rg5#
- 2.Qf4#
- 1...d4!
- 1...Kf5
- 1.Qb5?
- 1...Kf5
- 2.Rg5#
- 1...Kd6
- 2.Qxd5#
- 1...Sxd2
- 2.Bc7#
- 1...Sf2
- 2.Sc4#
- 2.Bc7#
- 1...Sc3
- 2.Sc4#
- 2.Bc7#
- 1...Sg3
- 2.Sc4#
- 2.Bc7#
- 1...Sc5
- 2.Bc7#
- 1...Sg5
- 2.Sc4#
- 2.Bc7#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Sc4#
- 2.Bc7#
- 1...Kd4!
- 1...Kf5
- 1.Sc4+?
- Keys
- 1.Qb3!
- 1...Kd4
- 2.Qc3#
- 1...Kf5
- 2.Rg5#
- 1...Kd6
- 2.Qxd5#
- 1...Sxd2
- 2.Bc7#
- 1...d4
- 2.Qxe6#
- 1...Sf2
- 2.Bc7#
- 1...Sc3
- 2.Bc7#
- 1...Sg3
- 2.Bc7#
- 1...Sc5
- 2.Bc7#
- 1...Sg5
- 2.Bc7#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Bc7#
- 1...Kd4
- 1.Qb3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- S(a);N_GUARD,XP(B)::B(H)
- S(a);N_GUARD::B(H)
- S(a);SBLOCK::S(E)
- Tries
- Try
- S(E);CHECK
- Vars
- K(c);P_SPINS(a),S_FLIGHT::B(H)
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- Refutation
- P(b);XS(E)
- Try
- S(E);CHECK
- Vars
- K(c);P_SPINS(a),S_FLIGHT::B(H)
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT
- Try
- Q(A);
- Vars
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- K(c);P_SPINP(d),S_FLIGHT::QAR1(A),XP(b)
- S(a);N_GUARD,XP(B)::B(H)
- S(a);N_GUARD::B(H)
- S(a);SBLOCK::S(E)
- P(b);OGATE,SBLOCK::QAR1(A),XP(d)
- Refutation
- K(c);P_SPINS(a),S_FLIGHT
- Try
- Q(A);
- Vars
- K(c);P_SPINS(a),S_FLIGHT::QAB1(A)
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- K(c);P_SPINP(d),S_FLIGHT::QAB1(A)
- S(a);N_GUARD::B(H)
- S(a);SBLOCK::S(E)
- Refutation
- P(b);
- Try
- Q(A);
- Vars
- K(c);P_SPINS(a),S_FLIGHT::QAB1(A)
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- K(c);P_SPINP(d),S_FLIGHT::QAB1(A)
- S(a);N_GUARD::B(H)
- S(a);SBLOCK::S(E)
- Refutation
- P(b);
- Try
- Q(A);
- Vars
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- Refutation
- P(b);
- Try
- Q(A);P_PINP(b)
- Vars
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- K(c);N_SPINP(b),P_SPINP(d),S_FLIGHT::QAR1(A),XP(b)
- S(a);N_GUARD,XP(B)::B(H)
- S(a);N_GUARD,N_SPINP(b)::B(H)
- S(a);SBLOCK::S(E)
- Refutation
- K(c);N_SPINP(b),P_SPINS(a),S_FLIGHT
- Try
- Actual
- Q(A);
- Vars
- K(c);P_SPINS(a),S_FLIGHT::QAB1(A)
- K(c);P-FLIGHT,P_SPINS(a)::R1(F)
- K(c);P_SPINP(d),S_FLIGHT::QAR1(A),XP(b)
- S(a);N_GUARD,XP(B)::B(H)
- P(b);OGATE,SBLOCK::QAR1(A),XP(d)
- S(a);N_GUARD::B(H)
- S(a);SBLOCK::S(E)
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).