MESON Chess Problem Database

Problem Display
PID: 193456 (r7/2p1p3/p1Q3Pq/B1K3p1/3p1p2/1B1k1p2/1pR2P2/1r1b1n2 w - - 0 1)

Farkas, Bertalan

Pesti Naplo, 1914

r7/2p1p3/p1Q3Pq/B1K3p1/3p1p2/1B1k1p2/1pR2P2/1r1b1n2

#2

7 + 14

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg6
      • 2.Qxg6#
    • 1...Bxc2
      • 2.Bc4#
    • 1...Sd2
      • 2.Rxd2#
    • 1...Sh2
      • 2.Rd2#
    • 1...Se3
      • 2.Rd2#
    • 1...Sg3
      • 2.Rd2#
  • Tries
    • 1.Qxf3+?
      • 1...Se3
        • 2.Rd2#
      • 1...Bxf3!
    • 1.Qd5?
      • threat
        • 2.Qxd4#
        • 2.Qf5#
      • 1...Qxg6
        • 2.Qxd4#
      • 1...Bxc2
        • 2.Bc4#
      • 1...Sd2
        • 2.Rxd2#
      • 1...Qg7
        • 2.Qf5#
      • 1...Qf8
        • 2.Qxd4#
      • 1...Qh3
        • 2.Qxd4#
      • 1...Qh8
        • 2.Qf5#
      • 1...Rd8
        • 2.Qf5#
      • 1...Rf8
        • 2.Qxd4#
      • 1...Se3
        • 2.Rd2#
        • 2.Qxd4#
      • 1...Sg3
        • 2.Rd2#
        • 2.Qxd4#
      • 1...e6
        • 2.Qxd4#
      • 1...e5!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Be4#
      • 1...Kxc2
        • 2.Kxd4#
      • 1...Qxg6
        • 2.Qxg6#
      • 1...Bxc2
        • 2.Bc4#
      • 1...Sd2
        • 2.Rxd2#
      • 1...Sg3
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(k);OGATE,XP(G)::QAB(F),XQ(k)
    • B(b);SBLOCK,XR(A)::B(C)
    • S(c);N_GUARD::R1(A),XS(c)
    • S(c);N_GUARD::R1(A)
  • Tries
    • Try
      • Q(F);CHECK,XP(f)
      • Vars
        • S(c);P_SPINS(c)::R1(A)
      • Refutation
        • B(b);XQ(F)
    • Try
      • Q(F);P_PINP(g)
      • Threat
        • DUALS(2)
      • Vars
        • Q(k);XP(G)::QAR1(F),XP(g)
        • B(b);SBLOCK,XR(A)::B(C)
        • S(c);N_GUARD::R1(A),XS(c)
        • Q(k);::QAB(F)
        • Q(k);::QAR1(F),XP(g)
        • R(n);::QAB(F)
        • R(n);::QAR1(F),XP(g)
        • P(m);::QAR1(F),XP(g)
      • Refutation
        • P(m);
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • K(e);S_FLIGHT,XR(A)::QAR(F)+K(E),XP(g)
      • Q(k);OGATE,XP(G)::QAB(F),XQ(k)
      • B(b);SBLOCK,XR(A)::B(C)
      • S(c);N_GUARD::R1(A),XS(c)
      • S(c);N_GUARD::R1(A)
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