MESON Chess Problem Database

Problem Display
PID: 234013 (8/8/8/1b6/1p3Nn1/1Q6/1K1kp3/1R6 w - - 0 1)

Hermanson, Halvar

Il Due Mosse, 1958

8/8/8/1b6/1p3Nn1/1Q6/1K1kp3/1R6

#2

4 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qxd3#
    • 1...Ba4
      • 2.Qd3#
    • 1...Bc6
      • 2.Qd3#
    • 1...Bd7
      • 2.Qd3#
    • 1...Be8
      • 2.Qd3#
    • 1...Se3
      • 2.Qxb4#
    • 1...e1S
      • 2.Rd1#
    • 1...e1B
      • 2.Rd1#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qc2#
      • 1...e1S
        • 2.Qd1#
      • 1...Bd3
        • 2.Qxb4#
      • 1...Se3
        • 2.Qxe3#
      • 1...Ba4!
    • 1.Qd5+?
      • 1...Bd3
        • 2.Qxd3#
      • 1...Ke3!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Qc2#
      • 1...e1S
        • 2.Qd1#
      • 1...Bd3
        • 2.Qxb4#
      • 1...Ba4
        • 2.Qd5#
      • 1...Se3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • B(e);N_GUARD::QAR1(C),XB(e)
    • B(e);N_GUARD::QAR1(C)
    • S(d);SBLOCK::QAB(C),XP(c)
    • P(b);N_GUARD::R1(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • P(b);N_GUARD::QAR1(C)
        • B(e);SBLOCK::QAB(C),XP(c)
        • S(d);N_GUARD::QAB1(C),XS(d)
      • Refutation
        • B(e);
    • Try
      • Q(C);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAR1(C),XB(e)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(C)
    • Vars
      • P(b);N_GUARD::QAR1(C)
      • B(e);SBLOCK::QAB(C),XP(c)
      • B(e);N_GUARD::QAR(C)
      • S(d);N_GUARD::QAB1(C),XS(d)
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