MESON Chess Problem Database

Problem Display
PID: 135731 (4NQ2/4P3/1pB1kp2/2p5/2r1rPKB/2bN1Rp1/4R3/q7 w - - 0 1)

Ancin, Andrej

Nova Svoboda, 1961

4NQ2/4P3/1pB1kp2/2p5/2r1rPKB/2bN1Rp1/4R3/q7

#2

10 + 9

14649 Andrej Ancin - Chess Compositions 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Qxf6#
    • 1...Re5
      • 2.Qxf6#
    • 1...f5+
      • 2.Qxf5#
  • Tries
    • 1.Rxe4+?
      • 1...Be5
        • 2.Qxf6#
        • 2.f5#
      • 1...Rxe4!
  • Keys
    • 1.Kh5!
      • threat
        • 2.f5#
      • 1...Kf5
        • 2.Sg7#
      • 1...f5
        • 2.Qg8#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(d);S_CUTB(b)::QAR1(J),XP(i)
    • R(e);S_CUTB(b)::QAR1(J),XP(i)
    • P(i);CHECK,OGATE::QAB1(J),XP(i)
  • Tries
    • Try
      • R(A);CHECK,N_SPINP(D),XR(e)
      • Refutation
        • R(d);P_PINP(D),XR(A)
  • Actual
    • K(E);N_SPINP(D),S_FLIGHT
    • Threat
      • P(D)
    • Vars
      • K(h);N_SPINR(e),P_SPINP(i),S_FLIGHT::S(I)
      • P(i);SBLOCK::QAB(J)
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