MESON Chess Problem Database

Problem Display
PID: 136753 (5N2/4r3/2n5/3QPkP1/4N2P/b2n1pK1/2R5/1B6 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2010

5N2/4r3/2n5/3QPkP1/4N2P/b2n1pK1/2R5/1B6

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sd6#
    • 1...Bb2
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Sdb4
      • 2.Sd6#
    • 1...Sc5
      • 2.Sd6#
    • 1...Scb4
      • 2.Sd6#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qe4#
      • 1...Rxe5
        • 2.Qf7#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sf2!
    • 1.Sc3?
      • threat
        • 2.Qe4#
      • 1...Rxe5
        • 2.Qf7#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Sc5!
    • 1.Sc5?
      • threat
        • 2.Qe4#
      • 1...Rxe5
        • 2.Qf7#
      • 1...Sxc5
        • 2.Rxc5#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Bxc5!
    • 1.Sf6?
      • threat
        • 2.Qe4#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Rxe5!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Qe4#
      • 1...Rxe5
        • 2.Qf7#
      • 1...Sxf2
        • 2.Rxf2#
      • 1...Sc5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::S(D)
    • B(a);N_GUARD,P_PINP(G)::S(D),XB(a)
    • S(b);S_CUTB(a)::S(D)
    • S(e);S_CUTB(a)::S(D)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(F)
      • Vars
        • R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(G)::QAR2(F)
        • S(b);OGATEB::B(A)+R(B),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(D);
      • Threat
        • QAB1(F)
      • Vars
        • R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(G)::QAR2(F)
        • S(b);OGATEB::B(A)+R(B),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(D);
      • Threat
        • QAB1(F)
      • Vars
        • R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(G)::QAR2(F)
        • S(b);OGATE,XS(D)::B(A)+R(B),XS(b)
        • S(b);OGATEB::B(A)+R(B),XS(b)
      • Refutation
        • B(a);XS(D)
    • Try
      • S(D);
      • Threat
        • QAB1(F)
      • Vars
        • S(b);OGATEB::B(A)+R(B),XS(b)
      • Refutation
        • R(f);P_SPINR(f),XP(G)
  • Actual
    • S(D);
    • Threat
      • QAB1(F)
    • Vars
      • R(f);N_GUARD,P_SPINR(f),SBLOCK,XP(G)::QAR2(F)
      • S(b);OGATE,XS(D)::B(A)+R(B),XS(b)
      • S(b);OGATEB::B(A)+R(B),XS(b)
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