MESON Chess Problem Database

Problem Display
PID: 214551 (7B/6R1/B2p4/3b3p/2n1N2P/3krR2/6Q1/6NK w - - 0 1)

Lowenthal, Samuel

Magyarorszag es a Nagyvilag, 1878

7B/6R1/B2p4/3b3p/2n1N2P/3krR2/6Q1/6NK

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rgg3?
      • threat
        • 2.Rxe3#
      • 1...Rxf3
        • 2.Qe2#
      • 1...Kxe4!
    • 1.Rg4?
      • threat
        • 2.Qd2#
        • 2.Qe2#
      • 1...Bxe4
        • 2.Qe2#
      • 1...hxg4!
    • 1.Re7?
      • threat
        • 2.Qd2#
        • 2.Qe2#
      • 1...Bxe4
        • 2.Qe2#
      • 1...Be6!
  • Keys
    • 1.Rd7!
      • 1...Kxe4
        • 2.Qg6#
      • 1...Rxf3
        • 2.Qe2#
      • 1...Bxe4
        • 2.Qe2#
      • 1...Bc6
        • 2.Sc5#
      • 1...Be6
        • 2.Sc5#
      • 1...Bb7
        • 2.Sc5#
      • 1...Bf7
        • 2.Sc5#
      • 1...Ba8
        • 2.Sc5#
      • 1...Bg8
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(H);
      • Threat
        • R1(D),XR(b)
      • Vars
        • R(b);XR(D)::QAB1(C)
      • Refutation
        • K(a);N_SPINR(b),N_SPINS(c),S_FLIGHT,XS(E)
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);XS(E)::QAB1(C)
      • Refutation
        • P(e);XR(H)
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);XS(E)::QAB1(C)
      • Refutation
        • B(d);
  • Actual
    • R(H);
    • Vars
      • K(a);N_SPINR(b),N_SPINS(c),OGATEB,S_FLIGHT,XS(E)::QAB(C)
      • R(b);N_SPINR(b),XR(D)::QAB1(C)
      • B(d);P_SPINP(f),SBLOCK,XS(E)::QAB1(C)
      • B(d);P_SPINP(f)::S(E)
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