MESON Chess Problem Database

Problem Display
PID: 119873 (5b2/Q4B1p/2p5/2R5/n2k4/n4K2/8/2N5 w - - 0 1)

Pillmeyer, A

Deutsche Schachzeitung, 1898

5b2/Q4B1p/2p5/2R5/n2k4/n4K2/8/2N5

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rd5+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Kc3!
    • 1.Qxa4+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Kxc5!
    • 1.Qd7+?
      • 1...Bd6
        • 2.Qxd6#
      • 1...Kxc5!
    • 1.Qe7?
      • threat
        • 2.Qe3#
        • 2.Qe5#
      • 1...Sxc5
        • 2.Qf6#
        • 2.Qe3#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Bh6
        • 2.Qd6#
        • 2.Qe5#
      • 1...Bg7
        • 2.Qd6#
        • 2.Qe3#
      • 1...Sc2
        • 2.Rc4#
        • 2.Qe5#
      • 1...Bxe7!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qe5#
      • 1...Kxc5
        • 2.Sb3#
      • 1...Bxc5
        • 2.Qh8#
      • 1...Sxc5
        • 2.Qb2#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bg7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);CHECK,XS(b)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(D),XS(a)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • Q(D);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAR2(D),XB(f)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::R1(C),XS(a)
      • Refutation
        • B(f);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • K(c);S_FLIGHT,XR(C)::S(A)
      • B(f);OGATE,SBLOCK,XR(C)::QAB(D)
      • S(b);N_GUARD,SBLOCK,XR(C)::QAB(D)
      • S(a);N_GUARD::R1(C),XS(a)
      • B(f);N_GUARD::QAR2(D),XB(f)
      • B(f);N_GUARD::QAR2(D)
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