MESON Chess Problem Database

Problem Display
PID: 169024 (8/2b5/8/8/k1K1Q3/8/6pR/8 w - - 0 1)

Abdullayev, Suleyman

SuperProblem, 2017

8/2b5/8/8/k1K1Q3/8/6pR/8

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxh2
      • 2.Qa8#
    • 1...Bg3
      • 2.Qa8#
    • 1...Bf4
      • 2.Qa8#
    • 1...Be5
      • 2.Qa8#
    • 1...Bd6
      • 2.Qa8#
    • 1...g1Q
      • 2.Ra2#
    • 1...g1S
      • 2.Ra2#
    • 1...g1B
      • 2.Ra2#
    • 1...g1R
      • 2.Ra2#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qa2#
        • 2.Qa1#
        • 2.Qb4#
      • 1...Ka3
        • 2.Qa1#
        • 2.Qb3#
      • 1...Ka5
        • 2.Qb5#
      • 1...g1Q
        • 2.Ra2#
        • 2.Qa2#
        • 2.Qb4#
      • 1...g1R
        • 2.Ra2#
        • 2.Qa2#
        • 2.Qb4#
      • 1...Ba5
        • 2.Qa2#
        • 2.Qa1#
        • 2.Qb3#
      • 1...Be5
        • 2.Qa2#
        • 2.Qb4#
      • 1...Bd6!
    • 1.Qc2+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5!
    • 1.Qxg2?
      • threat
        • 2.Qa2#
      • 1...Ka3
        • 2.Qa2#
      • 1...Bd6
        • 2.Qa8#
      • 1...Ka5!
    • 1.Qc6+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka3!
    • 1.Qb7?
      • threat
        • 2.Qb4#
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa7#
      • 1...Ba5
        • 2.Qb3#
      • 1...Bd6
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qa7#
      • 1...Bb6!
    • 1.Qe1?
      • threat
        • 2.Qb4#
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...g1Q
        • 2.Ra2#
        • 2.Qb4#
      • 1...g1R
        • 2.Ra2#
        • 2.Qb4#
      • 1...Ba5
        • 2.Qa1#
      • 1...Be5
        • 2.Qb4#
      • 1...Bd6!
    • 1.Qe8+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka3!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...Ka5
        • 2.Qa7#
      • 1...g1Q
        • 2.Ra2#
      • 1...g1R
        • 2.Ra2#
      • 1...Be5
        • 2.Qa7#
      • 1...Bd6
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(c);N_GUARD,SBLOCK,XR(A)::QAR(C)
    • B(c);N_GUARD::QAR(C)
    • P(a);OGATE::R(A)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • B(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);XP(a)
      • Threat
        • QAR2(C)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
        • B(c);N_GUARD::QAR(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
        • B(c);SBLOCK::QAB1(C)
      • Refutation
        • B(c);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
        • B(c);SBLOCK::QAR(C)
        • B(c);::QAR1(C)
      • Refutation
        • B(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • P(a);OGATE::R(A)
      • B(c);N_GUARD::QAR(C)
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