MESON Chess Problem Database

Problem Display
PID: 190215 (3b4/2N1N3/2Pk2P1/8/6K1/7Q/5B2/8 w - - 0 1)

Papp, Istvan

Pesti Naplo, 1913

3b4/2N1N3/2Pk2P1/8/6K1/7Q/5B2/8

#2

7 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc7
      • 2.Qh2#
      • 2.Qg3#
  • Tries
    • 1.Kf5?
      • 1...Kxc7
        • 2.Qh2#
        • 2.Qg3#
      • 1...Kxe7
        • 2.Bc5#
        • 2.Qa3#
      • 1...Bxc7
        • 2.Qa3#
      • 1...Bxe7!
    • 1.Se8+?
      • 1...Ke5
        • 2.Qe3#
      • 1...Ke6
        • 2.Qe3#
      • 1...Kxe7!
    • 1.Qa3+?
      • 1...Kxc7
        • 2.Qg3#
      • 1...Ke5!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Kxc7
        • 2.Qg3#
      • 1...Kxe7!
    • 1.Qe3?
      • threat
        • 2.Sb5#
        • 2.Se8#
        • 2.Bg3#
      • 1...Kxc7
        • 2.Bg3#
        • 2.Qf4#
        • 2.Qg3#
        • 2.Qe5#
      • 1...Bxc7
        • 2.Bg3#
      • 1...Bxe7!
    • 1.Qf3?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kxc7
        • 2.Qg3#
        • 2.Qf4#
      • 1...Kxe7
        • 2.Bc5#
      • 1...Bxc7
        • 2.Qf6#
      • 1...Bxe7!
    • 1.Qh8?
      • 1...Kxc7
        • 2.Qe5#
        • 2.Qh2#
      • 1...Kxe7
        • 2.Bc5#
      • 1...Bxc7
        • 2.Qf6#
      • 1...Bxe7!
  • Keys
    • 1.Qc3!
      • 1...Kxc7
        • 2.Qe5#
        • 2.Qg3#
      • 1...Kxe7
        • 2.Bc5#
      • 1...Bxc7
        • 2.Qf6#
      • 1...Bxe7
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • B(b);SBLOCK,XS(F)::QAB(B)
      • Refutation
        • B(b);XS(G)
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(F)::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XS(F)::QAB(B)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • B(b);SBLOCK,XS(F)::B(A)
      • Refutation
        • B(b);XS(G)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XS(G)::B(A)
        • B(b);SBLOCK,XS(F)::QAR2(B)
      • Refutation
        • B(b);XS(G)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT,XS(G)::B(A)
        • B(b);SBLOCK,XS(F)::QAR2(B)
      • Refutation
        • B(b);XS(G)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT,XS(G)::B(A)
      • B(b);SBLOCK,XS(F)::QAR2(B)
      • B(b);SBLOCK,XS(G)::B(A)
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