MESON Chess Problem Database

Problem Display
PID: 171342 (8/6p1/6N1/6Q1/5pp1/6k1/8/5K2 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

8/6p1/6N1/6Q1/5pp1/6k1/8/5K2

#2

3 + 4

3713 Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kh2
      • 2.Qh4#
    • 1...Kf3
      • 2.Qxf4#
    • 1...Kh3
      • 2.Qh4#
    • 1...f3
      • 2.Qh4#
  • Tries
    • 1.Kg1?
      • 1...Kh3
        • 2.Qh4#
      • 1...f3
        • 2.Qh4#
      • 1...Kf3!
    • 1.Qf6?
      • 1...Kh2
        • 2.Qh4#
      • 1...Kf3
        • 2.Qxf4#
      • 1...Kh3
        • 2.Qh4#
      • 1...f3
        • 2.Qh4#
      • 1...gxf6!
    • 1.Qh6?
      • 1...Kf3
        • 2.Qxf4#
      • 1...f3
        • 2.Qh4#
      • 1...gxh6!
    • 1.Qe7?
      • 1...Kh2
        • 2.Qh4#
      • 1...Kh3
        • 2.Qh4#
      • 1...f3
        • 2.Qh4#
      • 1...Kf3!
    • 1.Qxg4+?
      • 1...Kh2
        • 2.Qg2#
        • 2.Qh4#
      • 1...Kxg4!
    • 1.Qd5?
      • threat
        • 2.Qg2#
      • 1...Kh2
        • 2.Qg2#
      • 1...Kh3
        • 2.Qg2#
      • 1...f3!
    • 1.Qh5?
      • 1...f3
        • 2.Qh4#
      • 1...Kf3!
  • Keys
    • 1.Qd8!
      • 1...Kh2
        • 2.Qh4#
      • 1...Kf3
        • 2.Qd3#
      • 1...Kh3
        • 2.Qh4#
      • 1...f3
        • 2.Qh4#

Anticipated by 854(1978), 47185(1988)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(c),S_FLIGHT::QAR2(B)
    • K(a);N_SPINP(c),P-FLIGHT::QAR1(B),XP(b)
    • K(a);N_SPINP(c),P-FLIGHT::QAR1(B)
    • P(b);SBLOCK::QAB1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
    • Try
      • Q(B);N_PINP(c)
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(B),XP(b)
        • K(a);P-FLIGHT::QAR1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • P(d);XQ(B)
    • Try
      • Q(B);N_PINP(c)
      • Vars
        • K(a);P-FLIGHT::QAR1(B),XP(b)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • P(d);XQ(B)
    • Try
      • Q(B);N_PINP(c)
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • K(a);P-FLIGHT::QAR1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK,XP(c)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);N_PINP(c)
      • Threat
        • QAR1(B)
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);N_PINP(c)
      • Vars
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
  • Actual
    • Q(B);N_PINP(c)
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
      • K(a);P-FLIGHT::QAR2(B)
      • K(a);P-FLIGHT::QAR1(B)
      • P(b);SBLOCK::QAB1(B)
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