MESON Chess Problem Database

Problem Display
PID: 157913 (3r4/8/4N3/5BRb/3p1Rpp/6pk/6pb/3K2n1 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Buletin Problemistic, 1975

3r4/8/4N3/5BRb/3p1Rpp/6pk/6pb/3K2n1

#2

5 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Bxg4#
    • 1...Bf7
      • 2.Bxg4#
    • 1...Be8
      • 2.Bxg4#
  • Tries
    • 1.Rgxg4?
      • threat
        • 2.Sg5#
      • 1...Bxg4+
        • 2.Bxg4#
      • 1...Sf3
        • 2.Rxh4#
      • 1...Rg8!
    • 1.Rxh5?
      • threat
        • 2.Sg5#
        • 2.Bxg4#
      • 1...Sf3
        • 2.Bxg4#
      • 1...Rg8!
  • Keys
    • 1.Rfxg4!
      • threat
        • 2.Sf4#
      • 1...Bxg4+
        • 2.Bxg4#
      • 1...Se2
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(i);N_GUARD::B(C),XP(g)
  • Tries
    • Try
      • R(D);P_SPINR(D),XP(g)
      • Threat
        • S(E)
      • Vars
        • B(i);CHECK,OGATE,P_SPINB(i),XR(D)::B(C),XB(i)
        • S(a);N_PINR(D)::B(C)+R(D),DCHECK,XP(h)
      • Refutation
        • R(j);
    • Try
      • R(D);XB(i)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::B(C),XP(g)
      • Refutation
        • R(j);
  • Actual
    • R(B);P_SPINR(B),XP(g)
    • Threat
      • S(E)
    • Vars
      • B(i);CHECK,OGATE,P_SPINB(i),XR(B)::B(C),XB(i)
      • S(a);N_PINR(B)::B(C)+R(B),DCHECK,XP(d)
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