MESON Chess Problem Database

Problem Display
PID: 266368 (6B1/8/1R4N1/P1kp4/1q3pK1/QP1p1P2/n2P3B/8 w - - 0 1)

Moiseev, VN

Die Schwalbe, 1973

6B1/8/1R4N1/P1kp4/1q3pK1/QP1p1P2/n2P3B/8

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bg1#
    • 1...Sc1
      • 2.Qxb4#
    • 1...Sc3
      • 2.Qxb4#
  • Tries
    • 1.Sf8?
      • threat
        • 2.Se6#
      • 1...d4
        • 2.Sd7#
      • 1...Kd4!
    • 1.Bxf4?
      • 1...Kd4
        • 2.Be3#
      • 1...d4
        • 2.Bd6#
      • 1...Sc1
        • 2.Qxb4#
      • 1...Sc3
        • 2.Qxb4#
      • 1...Qxa3!
  • Keys
    • 1.Sxf4!
      • 1...Kd4
        • 2.Se6#
      • 1...Qxa3
        • 2.Se6#
      • 1...d4
        • 2.Sxd3#
      • 1...Sc1
        • 2.Qxb4#
      • 1...Sc3
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINQ(c),S_CUTP(f),S_FLIGHT::B(B)
    • S(a);N_GUARD::QAB1(C),XQ(c)
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • P(f);SBLOCK::S(I)
      • Refutation
        • K(e);N_SPINQ(c),S_FLIGHT
    • Try
      • B(B);P_SPINB(B),XP(d)
      • Vars
        • K(e);N_PINB(B),N_SPINQ(c),S_FLIGHT::B(B)
        • P(f);N_PINB(B),SBLOCK::B(B)
        • S(a);N_GUARD::QAB1(C),XQ(c)
      • Refutation
        • Q(c);N_PINB(B),N_SPINQ(c),XQ(C)
  • Actual
    • S(I);P_SPINS(I),XP(d)
    • Vars
      • K(e);N_PINS(I),N_SPINQ(c),S_FLIGHT::S(I)
      • Q(c);N_PINS(I),N_SPINQ(c),XQ(C)::S(I)
      • P(f);N_PINS(I),SBLOCK::S(I),XP(b)
      • S(a);N_GUARD::QAB1(C),XQ(c)
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