MESON Chess Problem Database

Problem Display
PID: 271716 (8/5N2/5K2/8/1P1kp3/3N4/2Q5/8 w - - 0 1)

Petrasinovic, Petrasin

Sachmatija, 2023

8/5N2/5K2/8/1P1kp3/3N4/2Q5/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qc5#
  • Tries
    • 1.Sc1?
      • threat
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...e3
        • 2.Qd3#
      • 1...Ke3!
    • 1.Se1?
      • threat
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...e3
        • 2.Qd3#
      • 1...Ke3!
    • 1.Sb2?
      • threat
        • 2.Qd2#
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc4#
        • 2.Qc5#
      • 1...e3
        • 2.Qd3#
        • 2.Qc4#
      • 1...Ke3!
    • 1.Sf2?
      • threat
        • 2.Qc5#
      • 1...Kd5
        • 2.Qxe4#
        • 2.Qc5#
      • 1...Ke3!
    • 1.Sf4?
      • threat
        • 2.Qc5#
      • 1...e3
        • 2.Qd3#
      • 1...Ke3!
    • 1.Sc5?
      • 1...Kd5
        • 2.Qxe4#
      • 1...e3
        • 2.Qd3#
      • 1...Ke3!
    • 1.Sde5?
      • threat
        • 2.Qd2#
        • 2.Qc5#
      • 1...Kd5
        • 2.Qd1#
        • 2.Qd2#
        • 2.Qc4#
        • 2.Qc5#
      • 1...e3
        • 2.Qd3#
        • 2.Qc4#
      • 1...Ke3!
    • 1.Sd6?
      • 1...Kd5
        • 2.Qc5#
      • 1...exd3
        • 2.Qc5#
      • 1...e3
        • 2.Qc4#
      • 1...Ke3!
  • Keys
    • 1.Sfe5!
      • threat
        • 2.Qc5#
      • 1...Ke3
        • 2.Qf2#
      • 1...Kd5
        • 2.Qc5#
      • 1...exd3
        • 2.Qxd3#
      • 1...e3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAB1(A),XP(b)
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR1(A)
        • P(b);SBLOCK,XS(B)::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • P(b);OGATE,XS(B)::QAR1(A),XP(b)
      • P(b);SBLOCK::QAR1(A)
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