MESON Chess Problem Database

Problem Display
PID: 140936 (2N5/8/6p1/6Bp/1k5K/1P6/P4Q2/8 w - - 0 1)

Tomasevic, Milos

Liga Problemista, 1980/I

2N5/8/6p1/6Bp/1k5K/1P6/P4Q2/8

#2

6 + 3

6490 yacpdb 2011
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Be7#
    • 1...Kc3
      • 2.Qd2#
    • 1...Ka5
      • 2.Qb6#
    • 1...Kb5
      • 2.Qb6#
  • Tries
    • 1.Kg3?
      • 1...Ka3
        • 2.Be7#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...h4+!
    • 1.Kh3?
      • 1...Ka3
        • 2.Be7#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...h4!
    • 1.Sa7?
      • 1...Ka3
        • 2.Be7#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5!
    • 1.Bc1?
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...g5+!
    • 1.Bd2+?
      • 1...Kb5
        • 2.Qb6#
      • 1...Ka3!
    • 1.Bf4?
      • 1...Ka3
        • 2.Bd6#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...g5+!
    • 1.Bf6?
      • 1...Ka3
        • 2.Be7#
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...g5+!
    • 1.Bh6?
      • 1...Ka3
        • 2.Bf8#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...g5+!
    • 1.Be7+?
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...Kc3!
    • 1.Qe3?
      • 1...Ka5
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...Ka3!
    • 1.Qd4+?
      • 1...Ka5
        • 2.Qb6#
        • 2.Qa4#
      • 1...Kb5
        • 2.Qb6#
      • 1...Ka3!
    • 1.Qa7?
      • 1...Kb5
        • 2.Qb6#
      • 1...Kc3!
  • Keys
    • 1.Qe2!
      • 1...Ka3
        • 2.Be7#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ka5
        • 2.Bd2#
      • 1...Kc5
        • 2.Qc4#

Anticipated by 2475(0000), 5102(1899)

This anticipates 164208(1988), 157940(1993), 171073(2002)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::B(E)
    • K(a);S_FLIGHT::QAB1(B)
    • K(a);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);CHECK
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(c);CHECK
    • Try
      • B(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(c);CHECK
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(c);CHECK
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(c);CHECK
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR1(B)
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