MESON Chess Problem Database

Problem Display
PID: 205612 (8/KR2N3/2pN1Qp1/2k5/1br2p2/8/3P2b1/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Melnichenko, Viktor Oleksandrovich

Variantim, 1998

8/KR2N3/2pN1Qp1/2k5/1br2p2/8/3P2b1/8

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.d4#
    • 1...Rc2
      • 2.d4#
    • 1...Rc3
      • 2.d4#
    • 1...Bf1
      • 2.Qe5#
    • 1...Bh3
      • 2.Qe5#
    • 1...f3
      • 2.Qe5#
  • Tries
    • 1.Sdf5?
      • threat
        • 2.Qd6#
      • 1...Rc1
        • 2.Qd4#
      • 1...Rc2
        • 2.Qd4#
      • 1...Rc3
        • 2.Qd4#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Re4
        • 2.Qxc6#
      • 1...gxf5!
    • 1.Rb6?
      • threat
        • 2.Sb7#
      • 1...Rc1
        • 2.d4#
      • 1...Rc2
        • 2.d4#
      • 1...Rc3
        • 2.d4#
      • 1...Re4
        • 2.Rxc6#
      • 1...Rd4!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Qd6#
      • 1...cxb5
        • 2.Qb6#
      • 1...Rc1
        • 2.Qd4#
      • 1...Rc2
        • 2.Qd4#
      • 1...Rc3
        • 2.Qd4#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Re4
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD::P(A)
    • B(a);N_GUARD::QAR2(C)
    • P(d);S_CUTB(a)::QAR2(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Vars
        • R(c);N_GUARD::QAB1(C)
        • R(c);N_GUARD::QAB1(C),XR(c)
        • R(c);S_CUTB(a)::QAR1(C),XP(f)
      • Refutation
        • P(g);XS(B)
    • Try
      • R(E);
      • Threat
        • S(B)
      • Vars
        • R(c);N_GUARD::P(A)
        • R(c);S_CUTB(a)::R1(E),XP(f)
      • Refutation
        • R(c);
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • P(f);OGATE,XS(B)::QAB1(C)
      • R(c);N_GUARD::QAB1(C)
      • R(c);N_GUARD::QAB1(C),XR(c)
      • R(c);S_CUTB(a)::QAR1(C),XP(f)
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