MESON Chess Problem Database

Problem Display
PID: 39621 (1n6/2Qp4/1B6/4PNK1/1p1PkP2/2b1NbR1/8/2nR4 w - - 0 1)

Bantysh, Nikolai Ivanovich

StrateGems, 2001

1n6/2Qp4/1B6/4PNK1/1p1PkP2/2b1NbR1/8/2nR4

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.Rxd4#
    • 1...Bh1
      • 2.Sd6#
    • 1...Be2
      • 2.Sd6#
    • 1...Bg2
      • 2.Sd6#
    • 1...Bg4
      • 2.Sd6#
    • 1...Bh5
      • 2.Sd6#
  • Tries
    • 1.Qxc3?
      • threat
        • 2.Sd6#
      • 1...Sd3
        • 2.Qxd3#
      • 1...d6
        • 2.Sxd6#
      • 1...bxc3!
    • 1.Qb7+?
      • 1...d5
        • 2.Qxd5#
      • 1...Sc6!
    • 1.d5?
      • threat
        • 2.Sd6#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...Bd2
        • 2.Qc4#
      • 1...Bd4
        • 2.Rxd4#
      • 1...d6
        • 2.Sxd6#
      • 1...Bxd1!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qd5#
      • 1...Bxd1
        • 2.Sd6#
      • 1...Bd2
        • 2.d5#
      • 1...d5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(b);OGATE,XP(D)::R1(A),XB(b)
    • B(c);::S(G)
  • Tries
    • Try
      • Q(J);XB(b)
      • Threat
        • S(G)
      • Vars
        • S(a);N_GUARD::QAB1(J),XS(a)
        • P(f);::S(G),XP(f)
      • Refutation
        • P(d);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAB1(J),XP(f)
      • Refutation
        • S(g);P_SPINS(g)
    • Try
      • P(D);
      • Threat
        • S(G)
      • Vars
        • B(b);OGATE,XP(F)::QAR1(J),XB(b)
        • B(b);N_GUARD::QAR2(J)
        • B(b);N_GUARD::R1(A),XB(b)
        • P(f);::S(G),XP(f)
      • Refutation
        • B(c);XR(A)
  • Actual
    • Q(J);
    • Threat
      • QAB1(J)
    • Vars
      • B(c);XR(A)::S(G)
      • B(b);N_GUARD::QAR(J)+P(D)
      • P(f);::QAB1(J),XP(f)
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