MESON Chess Problem Database

Problem Display
PID: 242288 (8/2B5/2p5/K2k1Bb1/3pNp2/8/8/5Q2 w - - 0 1)

Kisis, Imants J

Hlas l'udu, 1992

(First published on Thu Sep 17 1992)

8/2B5/2p5/K2k1Bb1/3pNp2/8/8/5Q2

#2

5 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qxd3#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qc4#
      • 1...Kc5
        • 2.Qc4#
      • 1...c5
        • 2.Qf3#
      • 1...d3!
    • 1.Sf6+?
      • 1...Kc5
        • 2.Qc1#
      • 1...Bxf6!
    • 1.Be6+?
      • 1...Kxe4
        • 2.Qe2#
      • 1...Kxe6!
    • 1.Qe2?
      • threat
        • 2.Qa2#
      • 1...d3
        • 2.Qxd3#
      • 1...c5!
    • 1.Qb5+?
      • 1...c5
        • 2.Qxc5#
      • 1...cxb5!
    • 1.Qb1?
      • threat
        • 2.Qa2#
        • 2.Qb3#
      • 1...Kc4
        • 2.Be6#
      • 1...d3
        • 2.Qxd3#
      • 1...c5!
    • 1.Qc1?
      • threat
        • 2.Qc5#
      • 1...c5
        • 2.Qxc5#
      • 1...Be7!
    • 1.Qd1?
      • threat
        • 2.Qb3#
      • 1...Kc4
        • 2.Be6#
      • 1...d3
        • 2.Qxd3#
      • 1...c5!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qb3#
      • 1...Kc4
        • 2.Be6#
      • 1...d3
        • 2.Qxd3#
      • 1...c5
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR2(A),XP(a)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • P(a);
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR(A)
      • Refutation
        • B(d);XS(B)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(B)::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT,XB(D)
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(e);
    • Try
      • Q(A);CHECK
      • Vars
        • P(e);P_SPINP(e)::QAR1(A),XP(e)
      • Refutation
        • P(e);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT::B(D)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(e);::QAR1(A),XP(e)
      • Refutation
        • B(d);
    • Try
      • Q(A);P_PINP(a)
      • Threat
        • QAB(A)
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::B(D)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(e);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(c);S_FLIGHT::B(D)
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(e);SBLOCK::QAB(A)+S(B)
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