MESON Chess Problem Database

Problem Display
PID: 269321 (8/8/2p1R3/8/3kp3/8/2Q5/3N2K1 w - - 0 1)

Petrasinovic, Petrasin

Seven Chess Notes, 2021

8/8/2p1R3/8/3kp3/8/2Q5/3N2K1

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Qxe4#
  • Tries
    • 1.Re5?
      • threat
        • 2.Qxe4#
        • 2.Qc3#
      • 1...e3
        • 2.Qe4#
        • 2.Qc3#
      • 1...Kxe5!
  • Keys
    • 1.Sb2!
      • 1...Ke3
        • 2.Qf2#
      • 1...Kd5
        • 2.Qc4#
      • 1...e3
        • 2.Qc4#
      • 1...c5
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR1(C),XP(b)
  • Tries
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • S(A);
    • Vars
      • K(a);N_GUARD,P_SPINP(b),S_FLIGHT::QAB1(C)
      • K(a);N_GUARD,P-FLIGHT::QAB1(C)
      • P(b);::QAR1(C)
      • P(c);SBLOCK::QAR2(C)
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Developed and maintained by Brian Stephenson.
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