MESON Chess Problem Database

Problem Display
PID: 64619 (2KN4/3N4/2p3r1/2bk1b1R/Q4n1R/1pP1nP2/4P2B/1q1r4 w - - 0 1)

Caillaud, Michel

Comm., Seneca MT, 1980

2KN4/3N4/2p3r1/2bk1b1R/Q4n1R/1pP1nP2/4P2B/1q1r4

#2

10 + 10

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qxc6#
    • 1...Sd3
      • 2.Qe4#
    • 1...Se6
      • 2.Qxc6#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qxc5#
      • 1...Kd6
        • 2.Qxc5#
      • 1...Sd3
        • 2.Rd4#
      • 1...Se6
        • 2.Sb6#
        • 2.Qxc6#
      • 1...cxb5!
    • 1.Qxc6+?
      • 1...Kc4
        • 2.Qxc5#
      • 1...Rxc6+!
    • 1.Qe4+?
      • 1...Kd6
        • 2.Sb7#
        • 2.Sf7#
        • 2.Bxf4#
        • 2.Qe5#
      • 1...Qxe4!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qxc5#
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kd6
        • 2.Qxc5#
      • 1...Sd3
        • 2.Rd4#
      • 1...Se6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(f);S_CUTR(j)::QAB1(E),XP(i)
    • S(e);S_CUTQ(a)::QAB1(E)
    • S(e);N_PINS(H),S_CUTR(j)::QAB1(E),XP(i)
  • Tries
    • Try
      • Q(E);N_PINB(h),P_PINB(f)
      • Threat
        • QAR1(E),XB(f)
      • Vars
        • K(g);N_SPINB(f),P-FLIGHT,P_SPINS(e)::QAB1(E),XB(f)
        • S(e);OGATE::R1(F)
      • Refutation
        • P(i);N_SPINB(f),P_SPINB(h),XQ(E)
    • Try
      • Q(E);CHECK,XP(i)
      • Vars
        • K(g);N_SPINB(h),P_SPINB(f),P_SPINS(e),S_FLIGHT::QAR1(E),XB(f)
      • Refutation
        • R(j);CHECK,XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • Q(a);XQ(E)
  • Actual
    • Q(E);N_PINB(h),P_PINB(f)
    • Threat
      • QAR1(E),XB(f)
    • Vars
      • K(g);N_SPINB(f),P_SPINS(e),S_FLIGHT::QAR1(E),XB(f)
      • K(g);N_SPINB(f),P-FLIGHT,P_SPINS(e)::QAB1(E),XB(f)
      • S(e);OGATE::R1(F)
      • S(e);N_PINS(H)::S(H)
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