MESON Chess Problem Database

Problem Display
PID: 228228 (8/5p2/5K2/6Pk/6p1/2R5/1Q4B1/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

Comm., Mat Plus, 2007

8/5p2/5K2/6Pk/6p1/2R5/1Q4B1/8

#2

5 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bf1?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Bh1?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Bf3?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...gxf3!
    • 1.Be4?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Bd5?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Bc6?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Bb7?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Ba8?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...g3!
    • 1.Rc4?
      • 1...g3
        • 2.Bf3#
        • 2.Qe2#
      • 1...Kh4!
    • 1.Qa1?
      • threat
        • 2.Qh1#
      • 1...Kh4
        • 2.Qh1#
      • 1...g3!
    • 1.Qc1?
      • threat
        • 2.Qh1#
      • 1...Kh4
        • 2.Qh1#
      • 1...g3!
    • 1.Qb1?
      • threat
        • 2.Qh7#
        • 2.Qh1#
      • 1...Kh4
        • 2.Qh7#
        • 2.Qh1#
      • 1...g3!
    • 1.Qc2?
      • threat
        • 2.Qh7#
      • 1...Kh4
        • 2.Qh7#
      • 1...g3!
    • 1.Qb8?
      • threat
        • 2.Qh2#
        • 2.Qh8#
      • 1...Kh4
        • 2.Qh2#
        • 2.Qh8#
      • 1...g3!
  • Keys
    • 1.Qb4!
      • 1...Kh4
        • 2.Rh3#
      • 1...g3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);P_PINP(a)
      • Threat
        • QAR(A)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);N_SPINP(a),XB(B)
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::R1(C)
      • P(a);OGATEB::B(B)
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