MESON Chess Problem Database

Problem Display
PID: 87634 (Q3N3/8/2p3K1/3k4/1p2R3/4b1P1/8/4N3 w - - 0 1)

Malikov, Mihail

Buletin Problemistic, 1973

Q3N3/8/2p3K1/3k4/1p2R3/4b1P1/8/4N3

#2

6 + 4

6490 yacpdb 2009
5454 Near Snap 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qa5#
  • Tries
    • 1.Qd8+?
      • 1...Kc5
        • 2.Qa5#
      • 1...Kxe4!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Sf6#
      • 1...Kc5
        • 2.Qa5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bf4
        • 2.Qd4#
      • 1...c5
        • 2.Qa8#

Anticipated by 93580(1886)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(d),P-FLIGHT::QAR2(E)
  • Tries
    • Try
      • Q(E);CHECK,N_PINP(d)
      • Vars
        • K(c);P-FLIGHT::QAR2(E)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • Q(E);N_PINP(d)
    • Threat
      • QAR1(E)
    • Vars
      • K(c);S_FLIGHT,XR(C)::S(F)
      • K(c);P-FLIGHT::QAR2(E)
      • B(a);N_GUARD::QAR1(E),XB(a)
      • B(a);N_GUARD::QAR1(E)
      • P(d);OGATEB,SBLOCK::QAB(E)
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