MESON Chess Problem Database

Problem Display
PID: 169114 (8/4B3/5R1p/7k/8/5N1P/5K2/8 w - - 0 1)

Ivanov, Valery Alekseevich

Lind, Ingemar

SuperProblem 118. TT, 2014

8/4B3/5R1p/7k/8/5N1P/5K2/8

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Se1?
      • 1...Kh4
        • 2.Rxh6#
      • 1...Kg5!
    • 1.Sg1?
      • 1...Kh4
        • 2.Rf5#
        • 2.Rxh6#
      • 1...Kg5!
    • 1.Sd2?
      • 1...Kh4
        • 2.Rxh6#
      • 1...Kg5!
    • 1.Sh2?
      • 1...Kh4
        • 2.Rxh6#
      • 1...Kg5!
    • 1.Sd4?
      • 1...Kh4
        • 2.Rxh6#
      • 1...Kg5!
    • 1.Se5?
      • threat
        • 2.Rf5#
      • 1...Kh4
        • 2.Rxh6#
      • 1...Kg5!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Rf5#
      • 1...Kxh4
        • 2.Rxh6#
      • 1...Kg5
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::B(E)+R(D),DCHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::B(E)+R(D),DCHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::B(E)+R(D),DCHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::B(E)+R(D),DCHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Threat
        • R(D)
      • Vars
        • K(a);P-FLIGHT::B(E)+R(D),DCHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • R(D)
    • Vars
      • K(a);P-FLIGHT,XS(B)::B(E)+R(D),DCHECK,XP(b)
      • K(a);P-FLIGHT::B(E)+R(D),DCHECK
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