MESON Chess Problem Database

Problem Display
PID: 87535 (5K1B/3Q3B/1P1p4/8/1p2PpP1/b2pk3/2n1PR2/1N5N w - - 0 1)

Halma, Michajlo

Vasyuchko, Nikolai

Buletin Problemistic, 2000-2001

5K1B/3Q3B/1P1p4/8/1p2PpP1/b2pk3/2n1PR2/1N5N

#2

11 + 7

6490 yacpdb 2009
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qxd3#
      • 1...dxe2
        • 2.Qxe2#
      • 1...f3
        • 2.Qg5#
      • 1...d2
        • 2.Rf3#
        • 2.Qd3#
      • 1...Se1!
    • 1.Qf5?
      • threat
        • 2.Qxf4#
      • 1...f3
        • 2.Qxf3#
        • 2.Qg5#
      • 1...dxe2!
    • 1.Qxd6?
      • threat
        • 2.Qxf4#
        • 2.Qxd3#
      • 1...dxe2
        • 2.Qd2#
      • 1...Se1
        • 2.Bd4#
        • 2.Qxf4#
        • 2.Qc5#
        • 2.Qd4#
      • 1...Sd4
        • 2.Bxd4#
        • 2.Qxf4#
        • 2.Qxd4#
      • 1...d2
        • 2.Qxf4#
        • 2.Qxd2#
        • 2.Qd3#
      • 1...f3
        • 2.Qh6#
      • 1...b3!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxf4#
      • 1...dxe2
        • 2.Qb3#
      • 1...f3
        • 2.Qxf3#

Anticipated by 109381(1940)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H),XP(c)
      • Vars
        • P(c);OGATE,XP(C)::QAR1(H),XP(c)
        • P(f);OGATEB::QAB(H)
      • Refutation
        • S(a);
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XP(f)
      • Refutation
        • P(c);XP(C)
    • Try
      • Q(H);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATE,XP(C)::QAB1(H)
        • P(f);OGATEB::QAB(H)
      • Refutation
        • P(e);P_PINQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XP(f)
    • Vars
      • P(c);OGATEB,XP(C)::QAR(H)
      • P(f);OGATE::QAR1(H),XP(f)
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