MESON Chess Problem Database

Problem Display
PID: 240170 (1N6/1Q4Br/p3b1B1/r2P1n1p/p2pk3/3R4/3KN3/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Variantim, 2011

1N6/1Q4Br/p3b1B1/r2P1n1p/p2pk3/3R4/3KN3/8

#2

8 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qxd4#
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Bxd5
        • 2.Qxd4#
      • 1...Rc5
        • 2.Qxe6#
      • 1...Bd7
        • 2.Qxd4#
      • 1...Bf7
        • 2.Qxd4#
      • 1...Bc8
        • 2.Qxd4#
      • 1...Bg8
        • 2.Qxd4#
      • 1...Rxd5!
    • 1.Qc7?
      • threat
        • 2.Qe5#
      • 1...Kxd5
        • 2.Sc3#
        • 2.Qc6#
      • 1...Rxd5
        • 2.Sg3#
        • 2.Qf4#
      • 1...Rxg7!
    • 1.Qe7?
      • threat
        • 2.Qxe6#
      • 1...Rxd5
        • 2.Qh4#
      • 1...Kxd5!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qxd4#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Rxd5
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINS(e),OGATEB,P_SPINP(b),S_FLIGHT,XP(D)::QAB1(F)
        • B(h);XP(D)::QAR1(F),XP(b)
        • R(d);::QAR2(F),XB(h)
        • B(h);::QAR1(F),XP(b)
      • Refutation
        • R(d);XP(D)
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Refutation
        • R(i);XB(G)
    • Try
      • Q(F);P_PINB(h)
      • Threat
        • QAR2(F),XB(h)
      • Vars
        • R(d);SBLOCK,XP(D)::QAR(F)
      • Refutation
        • K(c);N_SPINB(h),N_SPINS(e),P_SPINP(b),S_FLIGHT,XP(D)
  • Actual
    • Q(F);P_PINP(b)
    • Threat
      • QAR1(F),XP(b)
    • Vars
      • K(c);N_SPINS(e),S_FLIGHT,XP(D)::S(B)
      • R(d);SBLOCK,XP(D)::R1(C)
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