MESON Chess Problem Database

Problem Display
PID: 95072 (2B4B/1Np1Rp2/1p1p1R2/3kN3/Pr3p1K/1P3P2/2Q3b1/2b5 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Cherkasskaya Pravda, 1986

2B4B/1Np1Rp2/1p1p1R2/3kN3/Pr3p1K/1P3P2/2Q3b1/2b5

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd3#
    • 1...Rxb3
      • 2.Qe4#
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Rd4
      • 2.Qc6#
    • 1...Re4
      • 2.Qxe4#
    • 1...Rb5
      • 2.Qd3#
      • 2.Qe4#
      • 2.Qc4#
    • 1...dxe5
      • 2.Rd7#
    • 1...c5
      • 2.Rxd6#
    • 1...c6
      • 2.Rxd6#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Rxd6#
      • 1...Kc6
        • 2.Qe4#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Bxf3!
    • 1.Sg4?
      • threat
        • 2.Rf5#
      • 1...Kd4
        • 2.Rxd6#
      • 1...Rc4
        • 2.Qxc4#
      • 1...c5
        • 2.Rxd6#
      • 1...Re4
        • 2.Qxe4#
      • 1...Bb2!
  • Keys
    • 1.Rxc7!
      • threat
        • 2.Rxd6#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxe5
        • 2.Rf5#
      • 1...dxe5
        • 2.Rd6#
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • K(e);P-FLIGHT::QAR1(A)
    • R(c);N_GUARD::QAB1(A),XR(c)
    • R(c);SBLOCK::QAB1(A)
    • P(g);OGATEB,SBLOCK,XS(F)::R(I)
    • P(h);N_GUARD::R1(G),XP(g)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);P-FLIGHT::B(K)+R(G),DCHECK,XP(g)
        • K(e);P_SPINP(g),S_FLIGHT::QAB(A)
        • R(c);OGATE,XS(F)::QAB1(A),XR(c)
      • Refutation
        • B(b);XP(C)
    • Try
      • S(F);
      • Threat
        • R(G)
      • Vars
        • K(e);P-FLIGHT::B(K)+R(G),DCHECK,XP(g)
        • R(c);N_GUARD::QAB1(A),XR(c)
        • P(h);N_GUARD::R1(G),XP(g)
      • Refutation
        • B(a);
  • Actual
    • R(I);XP(h)
    • Threat
      • R1(G),XP(g)
    • Vars
      • K(e);P-FLIGHT::QAR1(A)
      • K(e);OGATEB,P-FLIGHT,XS(F)::B(K)+R(G),DCHECK
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