MESON Chess Problem Database

Problem Display
PID: 222457 (6B1/4R3/1B2p3/3NpR2/K3k3/8/8/6Q1 w - - 0 1)

Peipers, Fritz

Philadelphia Times, 1884

6B1/4R3/1B2p3/3NpR2/K3k3/8/8/6Q1

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Bh7#
    • 1...exd5
      • 2.Qb1#
    • 1...exf5
      • 2.Qe3#
  • Tries
    • 1.Kb3?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kxf5
        • 2.Bh7#
      • 1...exd5
        • 2.Qb1#
      • 1...exf5
        • 2.Qe3#
      • 1...Kxd5!
    • 1.Kb5?
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kxf5
        • 2.Bh7#
      • 1...exd5
        • 2.Qb1#
      • 1...exf5
        • 2.Qe3#
      • 1...Kd3!
    • 1.Sc3+?
      • 1...Kxf5
        • 2.Rf7#
      • 1...Kd3!
    • 1.Sb4?
      • threat
        • 2.Qb1#
        • 2.Qg4#
      • 1...exf5
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Rf4+?
      • 1...Kd3
        • 2.Qd1#
      • 1...Kxd5
        • 2.Qc5#
      • 1...exf4!
    • 1.Rxe6?
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Kd3!
    • 1.Rd7?
      • threat
        • 2.Qb1#
      • 1...Kxf5
        • 2.Bh7#
      • 1...exf5
        • 2.Qe3#
      • 1...Kd3!
    • 1.Qd1?
      • threat
        • 2.Qf3#
      • 1...exf5
        • 2.Qe2#
      • 1...Kxf5!
    • 1.Qf1?
      • threat
        • 2.Sc3#
        • 2.Sf6#
        • 2.Qf3#
      • 1...exd5
        • 2.Rf4#
        • 2.Rfxe5#
        • 2.Rexe5#
        • 2.Qb1#
        • 2.Qf3#
      • 1...exf5
        • 2.Sc3#
        • 2.Sf6#
        • 2.Qe2#
      • 1...Kxd5!
    • 1.Qg2+?
      • 1...Kxf5
        • 2.Bxe6#
        • 2.Bh7#
        • 2.Rf7#
      • 1...Kd3!
    • 1.Qg3?
      • threat
        • 2.Rxe5#
        • 2.Qf3#
      • 1...Kxf5
        • 2.Bh7#
      • 1...exf5
        • 2.Sc3#
        • 2.Sf6#
        • 2.Rxe5#
        • 2.Qe3#
      • 1...Kxd5!
  • Keys
    • 1.Rc7!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kxf5
        • 2.Bh7#
      • 1...exd5
        • 2.Qb1#
      • 1...exf5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,S_FLIGHT,XR(D)::B(G)
    • P(c);P_SPINP(b),XS(C)::QAB(A)
    • P(c);P_SPINP(b),SBLOCK,XR(D)::QAR1(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);OGATEB,S_FLIGHT,XR(D)::B(G)
        • P(c);P_SPINP(b),XS(C)::QAB(A)
        • P(c);P_SPINP(b),SBLOCK,XR(D)::QAR1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XS(C)
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT,XS(C)::QAR1(A)
        • K(a);OGATEB,S_FLIGHT,XR(D)::B(G)
        • P(c);P_SPINP(b),XS(C)::QAB(A)
        • P(c);P_SPINP(b),SBLOCK,XR(D)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(D)::R(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);P_SPINP(b),SBLOCK,XR(D)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • K(a);P_SPINP(c),S_FLIGHT,XS(C)::QAR1(A)
      • Refutation
        • P(b);P_SPINP(c),XR(D)
    • Try
      • R(F);P_PINP(b),XP(c)
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAR1(A)
        • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XR(D)::QAB1(A)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(F);
      • Threat
        • QAB(A)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::B(G)
        • P(c);SBLOCK,XR(D)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);P_SPINP(b),SBLOCK,XR(D)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XS(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::B(G)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XS(C)
  • Actual
    • R(F);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P_SPINP(b),S_FLIGHT,XS(C)::QAR1(A)
      • K(a);OGATEB,S_FLIGHT,XR(D)::B(G)
      • P(c);XS(C)::QAB(A)
      • P(c);SBLOCK,XR(D)::QAR1(A)
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