MESON Chess Problem Database

Problem Display
PID: 193858 (8/2p2Np1/2Pp2B1/3p1N1K/4kb1Q/4p3/4P2p/8 w - - 0 1)

Mendes de Moraes Filho, Feliciano

Pittsburgh Gazette-Times, 1916

8/2p2Np1/2Pp2B1/3p1N1K/4kb1Q/4p3/4P2p/8

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...h1Q
      • 2.Qxh1#
    • 1...h1S
      • 2.Qxh1#
    • 1...h1B
      • 2.Qxh1#
    • 1...h1R
      • 2.Qxh1#
    • 1...d4
      • 2.Se7#
  • Tries
    • 1.S7xd6+?
      • 1...Ke5
        • 2.Qe7#
      • 1...cxd6!
    • 1.Qh3?
      • threat
        • 2.Qg2#
        • 2.Qf3#
      • 1...Be5
        • 2.Qxe3#
        • 2.Qf3#
      • 1...Bg5
        • 2.Qf3#
      • 1...Bh6
        • 2.Qf3#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...Bg3!
  • Keys
    • 1.Kg4!
      • 1...d4
        • 2.Se7#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...Bg3
        • 2.Kxg3#
      • 1...Be5
        • 2.Sg5#
      • 1...Bg5
        • 2.Kxg5#
      • 1...Bh6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATE,P_PINQ(B)::QAB(B),XQ(a)
    • P(a);OGATE::QAB(B),XS(a)
    • P(a);OGATE::QAB(B),XB(a)
    • P(a);OGATE,P_PINQ(B)::QAB(B),XR(a)
    • P(e);SBLOCK::B(F)+S(C)
  • Tries
    • Try
      • S(G);CHECK,XP(f)
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT::QAR2(B)
      • Refutation
        • P(g);XS(G)
    • Try
      • Q(B);N_PINB(d)
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::QAB1(B)
        • P(a);OGATE,P_PINQ(B)::QAB(B),XQ(a)
        • P(a);OGATE::QAB(B),XB(a)
        • P(a);OGATE,P_PINQ(B)::QAB(B),XR(a)
      • Refutation
        • B(d);
  • Actual
    • K(D);N_PINB(d),S_FLIGHT
    • Vars
      • P(e);SBLOCK::B(F)+S(C)
      • P(a);OGATE::QAB(B),XQ(a)
      • P(a);OGATE::QAB(B),XS(a)
      • P(a);OGATE::QAB(B),XB(a)
      • P(a);OGATE::QAB(B),XR(a)
      • B(d);::QAR(B)+K(D),XB(d)
      • B(d);N_GUARD,SBLOCK::S(G)
      • B(d);N_GUARD::QAR(B)
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