MESON Chess Problem Database

Problem Display
PID: 134417 (2K2B2/2RpR3/3bN3/1B1kpb2/2p3Qr/3P4/2Nnq3/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Kopyl, Valery Volodimirovich

1st Comm., Sunningdale TATC Ty., 2010

2K2B2/2RpR3/3bN3/1B1kpb2/2p3Qr/3P4/2Nnq3/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Se3#
    • 1...Qf1
      • 2.Se3#
    • 1...Qxg4
      • 2.Se3#
    • 1...Qg2
      • 2.Se3#
    • 1...Qh2
      • 2.Se3#
    • 1...Qe3
      • 2.Sxe3#
    • 1...Sb1
      • 2.Bxc4#
    • 1...Sf1
      • 2.Bxc4#
    • 1...Sb3
      • 2.Bxc4#
    • 1...Sf3
      • 2.Bxc4#
    • 1...Se4
      • 2.Bxc4#
  • Tries
    • 1.Kxd7?
      • threat
        • 2.Bc6#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...e4!
    • 1.Rcxd7?
      • threat
        • 2.Sb4#
      • 1...e4
        • 2.Qxf5#
      • 1...Bxe6!
    • 1.dxc4+?
      • 1...Qxc4
        • 2.Se3#
      • 1...Sxc4!
  • Keys
    • 1.Rexd7!
      • threat
        • 2.Rxd6#
      • 1...Kxe6
        • 2.Rxd6#
      • 1...Bxe6
        • 2.Sb4#
      • 1...e4
        • 2.Qxf5#
      • 1...Se4
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(b);N_GUARD::S(A)
    • Q(b);N_GUARD,XQ(C)::S(A)
    • Q(b);N_GUARD::S(A),XQ(b)
    • S(a);N_GUARD::B(D),XP(c)
  • Tries
    • Try
      • K(H);P_SPINS(E),S_FLIGHT,XP(i)
      • Threat
        • B(D)
      • Vars
        • B(g);CHECK,OGATE,XS(E)::QAB1(C),XB(g)
      • Refutation
        • P(f);
    • Try
      • R(F);P_PINB(h),XP(i)
      • Threat
        • S(A)
      • Vars
        • P(f);OGATEB::QAR2(C),XB(g)
      • Refutation
        • B(g);P_PINR(F),XS(E)
    • Try
      • P(B);CHECK,XP(c)
      • Vars
        • Q(b);P_PINR(F),XP(B)::S(A)
      • Refutation
        • S(a);XP(B)
  • Actual
    • R(G);P_PINB(h),XP(i)
    • Threat
      • R1(G),XB(h)
    • Vars
      • K(e);N_SPINB(h),P_SPINB(g),S_FLIGHT,XS(E)::R1(G),XB(h)
      • B(g);P_PINR(G),XS(E)::S(A)
      • P(f);OGATEB::QAR2(C),XB(g)
      • S(a);N_GUARD::B(D),XP(c)
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