MESON Chess Problem Database

Problem Display
PID: 50741 (8/4p3/p3B3/B7/8/1NN2p2/1Pk2Pp1/R3K1R1 w Q - 0 1)

Petrovic, Nenad

1st HM., Aachener Anzeiger, 1928

8/4p3/p3B3/B7/8/1NN2p2/1Pk2Pp1/R3K1R1

#2

9 + 5

273 Mat Plus 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb2
      • 2.Ra2#
    • 1...Kd3
      • 2.0-0-0#
  • Tries
    • 1.Sd4+?
      • 1...Kd3
        • 2.Rd1#
        • 2.0-0-0#
      • 1...Kxb2!
    • 1.Bb4?
      • 1...Kxb2
        • 2.Ra2#
      • 1...Kd3
        • 2.0-0-0#
      • 1...a5!
    • 1.Ra3?
      • 1...Kxb2
        • 2.Ra2#
      • 1...Kd3!
    • 1.Rxg2?
      • 1...Kxb2
        • 2.Ra2#
      • 1...Kd3
        • 2.0-0-0#
      • 1...fxg2!
  • Keys
    • 1.Ra4!
      • 1...Kxb2
        • 2.Ra2#
      • 1...Kd3
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(D)::R1(A)
    • K(a);S_FLIGHT::0-0-0
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • B(H);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(A)
        • K(a);S_FLIGHT::0-0-0
      • Refutation
        • P(d);
    • Try
      • R(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);XP(b)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::R1(A)
        • K(a);S_FLIGHT::0-0-0
      • Refutation
        • P(c);XR(C)
  • Actual
    • R(A);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(D)::R1(A)
      • K(a);S_FLIGHT::B(I)
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