MESON Chess Problem Database

Problem Display
PID: 178321 (5K2/8/8/n7/8/Qb6/B7/k1N5 w - - 0 1)

Myhre, Erling

Morgenbladet, 1928

5K2/8/8/n7/8/Qb6/B7/k1N5

#2

4 + 3

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qc3#
    • 1...Bxa2
      • 2.Qxa2#
    • 1...Bc2
      • 2.Qc3#
    • 1...Ba4
      • 2.Qc3#
    • 1...Bc4
      • 2.Qc3#
    • 1...Bd5
      • 2.Qc3#
    • 1...Be6
      • 2.Qc3#
    • 1...Bf7
      • 2.Qc3#
    • 1...Bg8
      • 2.Qc3#
    • 1...Sc4
      • 2.Sxb3#
    • 1...Sc6
      • 2.Sxb3#
    • 1...Sb7
      • 2.Sxb3#
  • Tries
    • 1.Ke7?
      • 1...Bxa2
        • 2.Qxa2#
      • 1...Bd1
        • 2.Qc3#
      • 1...Bc2
        • 2.Qc3#
      • 1...Ba4
        • 2.Qc3#
      • 1...Bc4
        • 2.Qc3#
      • 1...Bd5
        • 2.Qc3#
      • 1...Be6
        • 2.Qc3#
      • 1...Bf7
        • 2.Qc3#
      • 1...Bg8
        • 2.Qc3#
      • 1...Sc4
        • 2.Sxb3#
      • 1...Sb7
        • 2.Sxb3#
      • 1...Sc6+!
    • 1.Bb1+?
      • 1...Ba2
        • 2.Qxa2#
      • 1...Kxb1!
    • 1.Qxb3?
      • threat
        • 2.Qb1#
        • 2.Qc3#
      • 1...Sc4
        • 2.Qb1#
      • 1...Sxb3!
    • 1.Qxa5?
      • threat
        • 2.Qc3#
        • 2.Qe5#
      • 1...Bxa2
        • 2.Qxa2#
      • 1...Bd5
        • 2.Qc3#
      • 1...Kb2!
  • Keys
    • 1.Kg7!
      • 1...Bxa2
        • 2.Qxa2#
      • 1...Bd1
        • 2.Qc3#
      • 1...Bc2
        • 2.Qc3#
      • 1...Ba4
        • 2.Qc3#
      • 1...Bc4
        • 2.Qc3#
      • 1...Bd5
        • 2.Qc3#
      • 1...Be6
        • 2.Qc3#
      • 1...Bf7
        • 2.Qc3#
      • 1...Bg8
        • 2.Qc3#
      • 1...Sc4
        • 2.Sxb3#
      • 1...Sc6
        • 2.Sxb3#
      • 1...Sb7
        • 2.Sxb3#

This anticipates 79161(1992)

There are these versions: 96595

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::QAB(C)
    • B(b);OGATE,P_SPINB(b),XB(B)::QAR1(C),XB(b)
    • S(c);N_GUARD::S(A),XB(b)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • B(b);OGATE,P_SPINB(b),XB(B)::QAR1(C),XB(b)
        • B(b);OGATE::QAB(C)
        • S(c);N_GUARD::S(A),XB(b)
      • Refutation
        • S(c);CHECK
    • Try
      • B(B);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR1(C),XB(b)
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • Q(C);XB(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::QAR1(C)
      • Refutation
        • S(c);XQ(C)
    • Try
      • Q(C);XS(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);OGATE,P_SPINB(b),XB(B)::QAR1(C),XB(b)
        • B(b);::QAB(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • B(b);OGATE,P_SPINB(b),XB(B)::QAR1(C),XB(b)
      • B(b);OGATE::QAB(C)
      • S(c);N_GUARD::S(A),XB(b)
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