MESON Chess Problem Database

Problem Display
PID: 11611 (8/8/8/2K5/6Q1/8/1p1kN3/1B5R w - - 0 1)

Pilipenko, Viktor

Deutsche Schachzeitung, 1970

8/8/8/2K5/6Q1/8/1p1kN3/1B5R

#2

5 + 2

5454 Near Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qd4#
      • 1...Kxc3
        • 2.Qb4#
      • 1...Ke3!
    • 1.Sg3?
      • threat
        • 2.Qd4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3!
    • 1.Re1?
      • 1...Ke3
        • 2.Qf4#
      • 1...Kxe1!
  • Keys
    • 1.Sg1!
      • 1...Kc1
        • 2.Sf3#
      • 1...Ke1
        • 2.Qe2#
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qd4#

This anticipates 132771(1996), 86888(1997)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR2(D)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAR2(D)
      • Vars
        • K(b);S_FLIGHT::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • S(C);
    • Vars
      • K(b);S_FLIGHT::R(B)+S(C)
      • K(b);S_FLIGHT::QAR1(D)
      • K(b);S_FLIGHT::QAB1(D)
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