MESON Chess Problem Database

Problem Display
PID: 244799 (8/8/4N3/8/Kp6/3k1pN1/1pRPq2R/1B6 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Revista Romana de Sah, 1982

8/8/4N3/8/Kp6/3k1pN1/1pRPq2R/1B6

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Rc1#
      • 2.Rc3#
    • 1...Qe1
      • 2.Rc1#
      • 2.Rc3#
    • 1...Qe3
      • 2.Rc1#
      • 2.Rc3#
      • 2.Rc5#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
    • 1...Qe4
      • 2.Rc1#
      • 2.Rc3#
      • 2.Rc5#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
    • 1...Qe5
      • 2.Rc1#
      • 2.Rc3#
      • 2.Rc5#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Rxb2#
      • 1...Qxe6+
        • 2.Rc4#
      • 1...Qxd2
        • 2.Rc3#
      • 1...Qf1
        • 2.Rc1#
        • 2.Rc3#
      • 1...Qe1
        • 2.Rc1#
        • 2.Rc3#
      • 1...Qd1!
    • 1.Kb5?
      • threat
        • 2.Rxb2#
      • 1...Qe5+
        • 2.Rc5#
      • 1...Qxe6
        • 2.Rc4#
      • 1...Qd1
        • 2.Rc3#
      • 1...Qf1
        • 2.Rc1#
        • 2.Rc3#
      • 1...Qe1
        • 2.Rc1#
        • 2.Rc3#
      • 1...Qxd2!
  • Keys
    • 1.Kxb4!
      • threat
        • 2.Rxb2#
      • 1...Qxd2+
        • 2.Rc3#
      • 1...Qe4+
        • 2.Rc4#
      • 1...Qxe6
        • 2.Rc4#
      • 1...Qd1
        • 2.Rc3#
      • 1...Qf1
        • 2.Rc1#
        • 2.Rc3#
      • 1...Qe1
        • 2.Rc1#
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • B(A)+R(B),XP(a)
      • Vars
        • Q(b);CHECK,XS(G)::B(A)+R(B)
        • Q(b);XP(C)::B(A)+R(B),DCHECK
      • Refutation
        • Q(b);P_PINR(B)
    • Try
      • K(F);S_FLIGHT
      • Threat
        • B(A)+R(B),XP(a)
      • Vars
        • Q(b);CHECK::B(A)+R(B)
        • Q(b);XS(G)::B(A)+R(B)
        • Q(b);::B(A)+R(B),DCHECK
      • Refutation
        • Q(b);XP(C)
  • Actual
    • K(F);P-FLIGHT,XP(e)
    • Threat
      • B(A)+R(B),XP(a)
    • Vars
      • Q(b);CHECK,XP(C)::B(A)+R(B),DCHECK
      • Q(b);CHECK::B(A)+R(B)
      • Q(b);XS(G)::B(A)+R(B)
      • Q(b);::B(A)+R(B),DCHECK
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