MESON Chess Problem Database

Problem Display
PID: 271938 (7Q/8/8/8/8/4K1p1/8/5kr1 w - - 0 1)

Nikitin, Vladimir V

Rochade Europa, 1995

7Q/8/8/8/8/4K1p1/8/5kr1

#2

2 + 3

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Qa1#
    • 1...Rh1
      • 2.Qxh1#
    • 1...Rg2
      • 2.Qa1#
    • 1...g2
      • 2.Qa1#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qe2#
      • 1...Ke1
        • 2.Qa1#
        • 2.Qc1#
        • 2.Qb1#
        • 2.Qe2#
      • 1...Rg2
        • 2.Qa1#
        • 2.Qc1#
        • 2.Qb1#
      • 1...Rh1!
    • 1.Qf6+?
      • 1...Ke1
        • 2.Qa1#
      • 1...Kg2!
    • 1.Qh5?
      • threat
        • 2.Qe2#
      • 1...Ke1
        • 2.Qe2#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Rg2
        • 2.Qd1#
      • 1...Kg2!
    • 1.Qh7?
      • 1...Ke1
        • 2.Qb1#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Rg2
        • 2.Qb1#
      • 1...g2
        • 2.Qb1#
      • 1...Kg2!
  • Keys
    • 1.Qa8!
      • 1...Ke1
        • 2.Qa1#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Rg2
        • 2.Qa1#
      • 1...g2
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,P-FLIGHT::QAR(B)
    • R(b);OGATEB::QAR2(B),XR(b)
    • R(b);SBLOCK::QAR(B)
    • P(c);SBLOCK::QAR(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • R(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • R(b);OGATEB::QAR2(B),XR(b)
        • R(b);SBLOCK::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR(B)
        • R(b);OGATEB::QAR2(B),XR(b)
        • R(b);SBLOCK::QAR(B)
        • P(c);SBLOCK::QAR(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR(B)
      • R(b);OGATEB::QAR2(B),XR(b)
      • R(b);SBLOCK::QAR(B)
      • P(c);SBLOCK::QAR(B)
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