MESON Chess Problem Database

Problem Display
PID: 223357 (1Q6/3r2N1/3b4/1p6/3kBp2/2RP4/4p3/4B2K w - - 0 1)

Bobrov, Pavel Pavlovich

Shakhmatny Vestnik, 1885

1Q6/3r2N1/3b4/1p6/3kBp2/2RP4/4p3/4B2K

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sf5#
    • 1...Ba3
      • 2.Sf5#
    • 1...Bb4
      • 2.Sf5#
    • 1...Bc5
      • 2.Sf5#
    • 1...Be5
      • 2.Sf5#
      • 2.Qb6#
    • 1...Be7
      • 2.Sf5#
    • 1...Bf8
      • 2.Sf5#
  • Tries
    • 1.Rc4+?
      • 1...Ke3
        • 2.Sf5#
      • 1...Ke5
        • 2.Bc3#
      • 1...bxc4!
    • 1.Qxd6+?
      • 1...Ke3
        • 2.Sf5#
      • 1...Rxd6!
    • 1.Qb6+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...Ke5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Bf2#
      • 1...Ke3
        • 2.Sf5#
      • 1...Kxc5
        • 2.Se6#
      • 1...Bxc5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(b);S_FLIGHT::S(F)
    • B(e);::S(F)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(F)
        • K(b);P_SPINB(e),S_FLIGHT::B(A)
      • Refutation
        • P(d);XR(C)
    • Try
      • Q(G);CHECK,XB(e)
      • Vars
        • K(b);S_FLIGHT::S(F)
      • Refutation
        • R(f);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(G),XB(e)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(C);
    • Threat
      • B(A)
    • Vars
      • K(b);S_FLIGHT::S(F)
      • K(b);S_FLIGHT,XR(C)::S(F)
      • B(e);SBLOCK,XR(C)::S(F)
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