MESON Chess Problem Database

Problem Display
PID: 170862 (8/1p6/r2N2QK/2pbk1p1/4pN2/2P1B1pp/8/5q2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Comm., StrateGems, 2017

8/1p6/r2N2QK/2pbk1p1/4pN2/2P1B1pp/8/5q2

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Sf7#
      • 2.Qe6#
    • 1...Be6
      • 2.Qxe6#
    • 1...Bf7
      • 2.Sxf7#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Qf6#
      • 1...Rxd6
        • 2.Qxg5#
      • 1...Be6
        • 2.Qxe6#
      • 1...Qxf4!
    • 1.Bd4+?
      • 1...Kxf4
        • 2.Qf5#
      • 1...cxd4!
    • 1.Bxc5?
      • threat
        • 2.Qf5#
        • 2.Qxg5#
      • 1...Kxf4
        • 2.Qf5#
      • 1...Qxf4
        • 2.Bd4#
      • 1...Rxd6
        • 2.Bxd6#
      • 1...gxf4
        • 2.Bd4#
        • 2.Qf5#
      • 1...g4
        • 2.Qf5#
        • 2.Qg5#
      • 1...Be6!
    • 1.Qe8+?
      • 1...Kf6
        • 2.Sxd5#
        • 2.Sh5#
      • 1...Be6
        • 2.Qxe6#
      • 1...Kxd6!
  • Keys
    • 1.Kxg5!
      • threat
        • 2.Qf6#
      • 1...Qxf4+
        • 2.Bxf4#
      • 1...Rxd6
        • 2.Qf5#
      • 1...Be6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::QAR1(E),XB(f)
    • B(f);N_GUARD::S(D),XB(f)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • QAB1(E)
      • Vars
        • R(i);SBLOCK,XS(D)::QAR2(E),XP(h)
        • B(f);N_GUARD::QAR1(E),XB(f)
      • Refutation
        • Q(a);XS(C)
    • Try
      • B(B);CHECK
      • Vars
        • K(g);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(e);XB(B)
    • Try
      • B(B);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(g);S_FLIGHT,XS(C)::QAR1(E)
        • Q(a);SBLOCK,XS(C)::B(B)
        • R(i);OGATE,P_PINQ(E),XS(D)::B(B),XR(i)
      • Refutation
        • B(f);
    • Try
      • Q(E);CHECK,P_SPINS(D)
      • Vars
        • B(f);N_GUARD,N_PINS(D),P_SPINB(f)::QAR1(E),XB(f)
      • Refutation
        • K(g);S_FLIGHT,XS(D)
  • Actual
    • K(F);S_FLIGHT,XP(h)
    • Threat
      • QAB1(E)
    • Vars
      • Q(a);CHECK,OGATE,XS(C)::B(B),XQ(a)
      • R(i);SBLOCK,XS(D)::QAR1(E)
      • B(f);N_GUARD::QAR1(E),XB(f)
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