MESON Chess Problem Database

Problem Display
PID: 119814 (2B5/8/r2BP2K/1P1kP2Q/2rp4/3p2P1/3P1N1b/7q w - - 0 1)

Cauveren, Jonas Ephraim

Teplitz-Schonauer Anzeiger, 1922

2B5/8/r2BP2K/1P1kP2Q/2rp4/3p2P1/3P1N1b/7q

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Qxf3#
    • 1...Qa1
      • 2.Qf3#
    • 1...Qb1
      • 2.Qf3#
    • 1...Qc1
      • 2.Qf3#
    • 1...Qf1
      • 2.Qf3#
    • 1...Qg1
      • 2.Qf3#
    • 1...Bg1
      • 2.Qxh1#
    • 1...Bxg3
      • 2.Qxh1#
  • Keys
    • 1.e7!
      • threat
        • 2.Qf7#
      • 1...Rxd6+
        • 2.e6#
      • 1...Bxg3
        • 2.Qxh1#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bg1
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(a);N_GUARD::QAB(F),XQ(a)
    • Q(a);N_GUARD::QAB(F)
    • Q(a);N_GUARD,P_PINP(A)::QAB(F)
    • B(b);OGATE,P_PINQ(F)::QAB(F),XQ(a)
    • B(b);OGATE,P_PINQ(F),XP(C)::QAB(F),XQ(a)
  • Actual
    • P(H);P_SPINB(G)
    • Threat
      • QAB(F)
    • Vars
      • R(g);CHECK,SBLOCK,XB(G)::QAR(F)+P(E)
      • B(b);OGATE,P_PINQ(F),XP(C)::QAB(F),XQ(a)
      • Q(a);N_GUARD::QAB(F),XQ(a)
      • B(b);OGATE,P_PINQ(F)::QAB(F),XQ(a)
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