MESON Chess Problem Database

Problem Display
PID: 214624 (1b5k/1Q3K2/8/4p1p1/7B/8/8/8 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1978

1b5k/1Q3K2/8/4p1p1/7B/8/8/8

#2

3 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kf6?
      • threat
        • 2.Qg7#
      • 1...Kg8
        • 2.Qg7#
      • 1...Bc7!
    • 1.Kg6?
      • threat
        • 2.Qc8#
        • 2.Qg7#
        • 2.Qh7#
        • 2.Qxb8#
      • 1...Kg8
        • 2.Qc8#
        • 2.Qg7#
        • 2.Qxb8#
      • 1...Bd6
        • 2.Qg7#
        • 2.Qh7#
      • 1...Ba7
        • 2.Qc8#
        • 2.Qg7#
        • 2.Qh7#
      • 1...Bc7!
    • 1.Be1?
      • threat
        • 2.Qh1#
      • 1...Kh7
        • 2.Qh1#
      • 1...e4!
    • 1.Bf2?
      • threat
        • 2.Qh1#
      • 1...Kh7
        • 2.Qh1#
      • 1...e4!
    • 1.Bg3?
      • threat
        • 2.Qh1#
      • 1...Kh7
        • 2.Qh1#
      • 1...e4!
    • 1.Bxg5?
      • threat
        • 2.Qh1#
      • 1...Kh7
        • 2.Qh1#
      • 1...e4!
    • 1.Qf3?
      • threat
        • 2.Qh5#
      • 1...Kh7
        • 2.Qh5#
      • 1...g4!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Be1#
        • 2.Bf2#
        • 2.Bg3#
        • 2.Bxg5#
      • 1...Kh7
        • 2.Be1#
        • 2.Bf2#
        • 2.Bg3#
        • 2.Bxg5#
      • 1...gxh4
        • 2.Qxh4#
      • 1...e4
        • 2.Bg3#
      • 1...g4
        • 2.Be1#
        • 2.Bf2#
        • 2.Bg3#
        • 2.Bg5#
        • 2.Bf6#
        • 2.Be7#
        • 2.Bd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • QAB1(B)
      • Vars
        • K(d);P-FLIGHT::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(4)
      • Refutation
        • B(c);
    • Try
      • B(A);
      • Threat
        • QAB(B)
      • Vars
        • K(d);P-FLIGHT::QAR(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Threat
        • QAB(B)
      • Vars
        • K(d);P-FLIGHT::QAR(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Threat
        • QAB(B)
      • Vars
        • K(d);P-FLIGHT::QAR(B)
      • Refutation
        • P(a);
    • Try
      • B(A);XP(b)
      • Threat
        • QAB(B)
      • Vars
        • K(d);P-FLIGHT::QAR(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(d);P-FLIGHT::QAR2(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Threat
      • DUALS(4)
    • Vars
      • P(b);OGATE,P_SPINP(b),XB(A)::QAR(B),XP(b)
      • P(a);::QAR(B)+B(A)
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