MESON Chess Problem Database

Problem Display
PID: 225465 (6K1/6Rp/1p1P4/3p2p1/1BPk1pN1/3P2rQ/1PP5/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Praca, 1998

6K1/6Rp/1p1P4/3p2p1/1BPk1pN1/3P2rQ/1PP5/8

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.c3#
    • 1...Rg2
      • 2.c3#
    • 1...Rxd3
      • 2.Qxd3#
  • Tries
    • 1.Rc7?
      • threat
        • 2.Bc3#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...dxc4!
    • 1.Qxh7?
      • threat
        • 2.c3#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...dxc4
        • 2.Qe4#
      • 1...Rxg4!
  • Keys
    • 1.Rxg5!
      • threat
        • 2.Rxd5#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Rxg4
        • 2.c3#
      • 1...dxc4
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(a);::P(B)
    • R(a);OGATE,XP(C)::QAR1(D),XR(a)
  • Tries
    • Try
      • R(I);
      • Threat
        • B(E)
      • Vars
        • R(a);OGATE,XP(C)::QAR1(D),XR(a)
      • Refutation
        • P(d);XP(F)
    • Try
      • Q(D);XP(g)
      • Threat
        • P(B)
      • Vars
        • R(a);OGATE,XP(C)::QAR1(D),XR(a)
        • P(d);N_GUARD,XP(F)::QAR1(D)
      • Refutation
        • R(a);XS(G)
  • Actual
    • R(I);XP(e)
    • Threat
      • R1(I),XP(d)
    • Vars
      • R(a);OGATE,XP(C)::QAR1(D),XR(a)
      • R(a);P_PINR(I),XS(G)::P(B)
      • P(d);XP(F)::B(E)
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