MESON Chess Problem Database

Problem Display
PID: 203618 (8/1p1N1p2/2p2K2/N5Q1/3kp3/p1r2p2/1nn2P2/B7 w - - 0 1)

Mar, S

64 Shakhmatnoe obozrenie, 1924

8/1p1N1p2/2p2K2/N5Q1/3kp3/p1r2p2/1nn2P2/B7

#2

6 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qc5#
      • 2.Qe5#
    • 1...Rc4
      • 2.Qd2#
    • 1...Rc5
      • 2.Qd2#
    • 1...Sd1
      • 2.Qd2#
    • 1...Sa4
      • 2.Qd2#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qe5#
      • 1...Rxc5
        • 2.Qd2#
      • 1...Sd3
        • 2.Scb3#
      • 1...Sc4
        • 2.Sab3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(d);N_GUARD,P_SPINS(a)::QAR2(D)
    • S(a);N_GUARD,P_SPINR(d)::QAR2(D)
  • Actual
    • S(F);
    • Threat
      • QAB1(D)
    • Vars
      • R(d);N_GUARD,P_SPINS(a),SBLOCK,XS(F)::QAR2(D)
      • S(a);P_SPINR(d),SBLOCK::S(F)
      • S(a);P_SPINR(d),SBLOCK::S(C)
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